121311203043232 has 24 divisors (see below), whose sum is σ = 238831677566496. Its totient is φ = 60655538899392.

The previous prime is 121311203043223. The next prime is 121311203043259. The reversal of 121311203043232 is 232340302113121.

It is a super-2 number, since 2×121311203043232² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121311203043232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55253683 + ... + 57407245.

It is an arithmetic number, because the mean of its divisors is an integer number (9951319898604).

Almost surely, 2^{121311203043232} is an apocalyptic number.

It is an amenable number.

121311203043232 is a deficient number, since it is larger than the sum of its proper divisors (117520474523264).

121311203043232 is a wasteful number, since it uses less digits than its factorization.

121311203043232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913900 (or 3913892 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 121311203043232 its reverse (232340302113121), we get a palindrome (353651505156353).

The spelling of 121311203043232 in words is "one hundred twenty-one trillion, three hundred eleven billion, two hundred three million, forty-three thousand, two hundred thirty-two".