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122401202131 = 1323409368569
BaseRepresentation
bin111000111111110101…
…1100001111111010011
3102200221100110022120201
41301333223201333103
54001134201432011
6132121430320031
711562134023465
oct1617753417723
9380840408521
10122401202131
1147a0131889a
121b87bab9017
13b708804230
145cd21da135
1532b5bb7cc1
hex1c7fae1fd3

122401202131 has 8 divisors (see below), whose sum is σ = 137547839520. Its totient is φ = 108073301952.

The previous prime is 122401202129. The next prime is 122401202149. The reversal of 122401202131 is 131202104221.

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 122401202131 - 21 = 122401202129 is a prime.

It is a super-2 number, since 2×1224012021312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122401202099 and 122401202108.

It is not an unprimeable number, because it can be changed into a prime (122401202101) 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, 204683986 + ... + 204684583.

It is an arithmetic number, because the mean of its divisors is an integer number (17193479940).

Almost surely, 2122401202131 is an apocalyptic number.

122401202131 is a deficient number, since it is larger than the sum of its proper divisors (15146637389).

122401202131 is a wasteful number, since it uses less digits than its factorization.

122401202131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409368605.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122401202131 its reverse (131202104221), we get a palindrome (253603306352).

The spelling of 122401202131 in words is "one hundred twenty-two billion, four hundred one million, two hundred two thousand, one hundred thirty-one".

Divisors: 1 13 23 299 409368569 5321791397 9415477087 122401202131