3121213220032 has 14 divisors (see below), whose sum is σ = 6193657483628. Its totient is φ = 1560606609984.

The previous prime is 3121213220023. The next prime is 3121213220071. The reversal of 3121213220032 is 2300223121213.

It is a junction number, because it is equal to n+sod(n) for n = 3121213219985 and 3121213220012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24384478218 + ... + 24384478345.

Almost surely, 2^{3121213220032} is an apocalyptic number.

3121213220032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3121213220032 is a deficient number, since it is larger than the sum of its proper divisors (3072444263596).

3121213220032 is an equidigital number, since it uses as much as digits as its factorization.

3121213220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48768956575 (or 48768956565 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 3121213220032 its reverse (2300223121213), we get a palindrome (5421436341245).

The spelling of 3121213220032 in words is "three trillion, one hundred twenty-one billion, two hundred thirteen million, two hundred twenty thousand, thirty-two".