121311212032 has 20 divisors (see below), whose sum is σ = 242385489126. Its totient is φ = 60655605760.

The previous prime is 121311212021. The next prime is 121311212083. The reversal of 121311212032 is 230212113121.

It can be written as a sum of positive squares in only one way, i.e., 107888599296 + 13422612736 = 328464^2 + 115856^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118467469 + ... + 118468492.

Almost surely, 2^121311212032 is an apocalyptic number.

It is an amenable number.

121311212032 is a deficient number, since it is larger than the sum of its proper divisors (121074277094).

121311212032 is an frugal number, since it uses more digits than its factorization.

121311212032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236935979 (or 236935963 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121311212032 its reverse (230212113121), we get a palindrome (351523325153).

The spelling of 121311212032 in words is "one hundred twenty-one billion, three hundred eleven million, two hundred twelve thousand, thirty-two".