312121112032 has 48 divisors (see below), whose sum is σ = 619478066592. Its totient is φ = 154796428800.

The previous prime is 312121112003. The next prime is 312121112063. The reversal of 312121112032 is 230211121213.

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, 3223558 + ... + 3318970.

It is an arithmetic number, because the mean of its divisors is an integer number (12905793054).

Almost surely, 2^312121112032 is an apocalyptic number.

312121112032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

312121112032 is a deficient number, since it is larger than the sum of its proper divisors (307356954560).

312121112032 is a wasteful number, since it uses less digits than its factorization.

312121112032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96251 (or 96243 counting only the distinct ones).

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

Adding to 312121112032 its reverse (230211121213), we get a palindrome (542332233245).

The spelling of 312121112032 in words is "three hundred twelve billion, one hundred twenty-one million, one hundred twelve thousand, thirty-two".