121311101252 has 48 divisors (see below), whose sum is σ = 232142984640. Its totient is φ = 55010870400.

The previous prime is 121311101231. The next prime is 121311101341. The reversal of 121311101252 is 252101113121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44256602 + ... + 44259342.

It is an arithmetic number, because the mean of its divisors is an integer number (4836312180).

Almost surely, 2^121311101252 is an apocalyptic number.

It is an amenable number.

121311101252 is a deficient number, since it is larger than the sum of its proper divisors (110831883388).

121311101252 is a wasteful number, since it uses less digits than its factorization.

121311101252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772 (or 4770 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 121311101252 its reverse (252101113121), we get a palindrome (373412214373).

The spelling of 121311101252 in words is "one hundred twenty-one billion, three hundred eleven million, one hundred one thousand, two hundred fifty-two".