212031001113102 has 64 divisors (see below), whose sum is σ = 481276969747200. Its totient is φ = 69173009609760.

The previous prime is 212031001113073. The next prime is 212031001113109. The reversal of 212031001113102 is 201311100130212.

212031001113102 is a `hidden beast` number, since 21 + 20 + 310 + 0 + 1 + 1 + 1 + 310 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212031001113109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145864549 + ... + 147310992.

It is an arithmetic number, because the mean of its divisors is an integer number (7519952652300).

Almost surely, 2^{212031001113102} is an apocalyptic number.

212031001113102 is an abundant number, since it is smaller than the sum of its proper divisors (269245968634098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212031001113102 is a wasteful number, since it uses less digits than its factorization.

212031001113102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293175838 (or 293175832 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 212031001113102 its reverse (201311100130212), we get a palindrome (413342101243314).

The spelling of 212031001113102 in words is "two hundred twelve trillion, thirty-one billion, one million, one hundred thirteen thousand, one hundred two".