12100212331031 has 16 divisors (see below), whose sum is σ = 13977091987200. Its totient is φ = 10352844228480.

The previous prime is 12100212330971. The next prime is 12100212331033. The reversal of 12100212331031 is 13013321200121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12100212331031 - 2⁶ = 12100212330967 is a prime.

It is a super-2 number, since 2×12100212331031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12100212330994 and 12100212331012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100212331033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6251870 + ... + 7955268.

It is an arithmetic number, because the mean of its divisors is an integer number (873568249200).

Almost surely, 2^{12100212331031} is an apocalyptic number.

12100212331031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12100212331031 is a deficient number, since it is larger than the sum of its proper divisors (1876879656169).

12100212331031 is a wasteful number, since it uses less digits than its factorization.

12100212331031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741414.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12100212331031 its reverse (13013321200121), we get a palindrome (25113533531152).

The spelling of 12100212331031 in words is "twelve trillion, one hundred billion, two hundred twelve million, three hundred thirty-one thousand, thirty-one".