201213312102 has 48 divisors (see below), whose sum is σ = 496273160448. Its totient is φ = 58322697840.

The previous prime is 201213312089. The next prime is 201213312133.

201213312102 is a `hidden beast` number, since 2 + 0 + 121 + 331 + 210 + 2 = 666.

201213312102 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22087378 + ... + 22096485.

It is an arithmetic number, because the mean of its divisors is an integer number (10339024176).

Almost surely, 2^201213312102 is an apocalyptic number.

201213312102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201213312102 is an abundant number, since it is smaller than the sum of its proper divisors (295059848346).

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

201213312102 is a wasteful number, since it uses less digits than its factorization.

201213312102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44183905 (or 44183902 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

It can be divided in two parts, 201213 and 312102, that added together give a palindrome (513315).

The spelling of 201213312102 in words is "two hundred one billion, two hundred thirteen million, three hundred twelve thousand, one hundred two".