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122111113031 = 1311795207519
BaseRepresentation
bin111000110111001100…
…0111011011101000111
3102200012010121021010222
41301232120323131013
54000040421104111
6132032544534555
711552012222615
oct1615630733507
9380163537128
10122111113031
11478725a3636
121b7ba92145b
13b69069658b
145ca58866b5
15329a4b57db
hex1c6e63b747

122111113031 has 8 divisors (see below), whose sum is σ = 123730675200. Its totient is φ = 120501966520.

The previous prime is 122111113027. The next prime is 122111113037. The reversal of 122111113031 is 130311111221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122111113031 - 22 = 122111113027 is a prime.

It is a super-2 number, since 2×1221111130312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111113037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2580311 + ... + 2627208.

It is an arithmetic number, because the mean of its divisors is an integer number (15466334400).

Almost surely, 2122111113031 is an apocalyptic number.

122111113031 is a deficient number, since it is larger than the sum of its proper divisors (1619562169).

122111113031 is a wasteful number, since it uses less digits than its factorization.

122111113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207829.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 122111113031 its reverse (130311111221), we get a palindrome (252422224252).

The spelling of 122111113031 in words is "one hundred twenty-two billion, one hundred eleven million, one hundred thirteen thousand, thirty-one".

Divisors: 1 131 179 23449 5207519 682184989 932145901 122111113031