120121232312 has 32 divisors (see below), whose sum is σ = 228130560000. Its totient is φ = 59286765408.

The previous prime is 120121232249. The next prime is 120121232351. The reversal of 120121232312 is 213232121021.

It is a super-2 number, since 2×120121232312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3089489 + ... + 3128127.

It is an arithmetic number, because the mean of its divisors is an integer number (7129080000).

Almost surely, 2^120121232312 is an apocalyptic number.

It is an amenable number.

120121232312 is a deficient number, since it is larger than the sum of its proper divisors (108009327688).

120121232312 is a wasteful number, since it uses less digits than its factorization.

120121232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43643 (or 43639 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 120121232312 its reverse (213232121021), we get a palindrome (333353353333).

The spelling of 120121232312 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred thirty-two thousand, three hundred twelve".