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122102032311031 = 670627182071453
BaseRepresentation
bin11011110000110100011000…
…010000110010001011110111
3121000022211200120102022210011
4123300310120100302023313
5112001004430232423111
61111404522124241051
734501403121054613
oct3360643020621367
9530284616368704
10122102032311031
11359a61aa056493
12118402376a0187
13531923154b986
142221aac84a343
15e1b249eb4021
hex6f0d184322f7

122102032311031 has 4 divisors (see below), whose sum is σ = 122102215053112. Its totient is φ = 122101849568952.

The previous prime is 122102032311023. The next prime is 122102032311073. The reversal of 122102032311031 is 130113230201221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122102032311031 - 23 = 122102032311023 is a prime.

It is a super-2 number, since 2×1221020323110312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122102032310993 and 122102032311011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102032371031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90365100 + ... + 91706353.

It is an arithmetic number, because the mean of its divisors is an integer number (30525553763278).

Almost surely, 2122102032311031 is an apocalyptic number.

122102032311031 is a deficient number, since it is larger than the sum of its proper divisors (182742081).

122102032311031 is an equidigital number, since it uses as much as digits as its factorization.

122102032311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182742080.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 122102032311031 its reverse (130113230201221), we get a palindrome (252215262512252).

The spelling of 122102032311031 in words is "one hundred twenty-two trillion, one hundred two billion, thirty-two million, three hundred eleven thousand, thirty-one".

Divisors: 1 670627 182071453 122102032311031