12021200313031 has 24 divisors (see below), whose sum is σ = 14887829105664. Its totient is φ = 9504110622240.

The previous prime is 12021200312987. The next prime is 12021200313041. The reversal of 12021200313031 is 13031300212021.

It is not a de Polignac number, because 12021200313031 - 2¹⁷ = 12021200181959 is a prime.

It is a super-2 number, since 2×12021200313031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021200313041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2258955 + ... + 5398636.

It is an arithmetic number, because the mean of its divisors is an integer number (620326212736).

Almost surely, 2^{12021200313031} is an apocalyptic number.

12021200313031 is a deficient number, since it is larger than the sum of its proper divisors (2866628792633).

12021200313031 is a wasteful number, since it uses less digits than its factorization.

12021200313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7658951 (or 7658938 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12021200313031 its reverse (13031300212021), we get a palindrome (25052500525052).

The spelling of 12021200313031 in words is "twelve trillion, twenty-one billion, two hundred million, three hundred thirteen thousand, thirty-one".