201312231302 has 64 divisors (see below), whose sum is σ = 382126768128. Its totient is φ = 77410080000.

The previous prime is 201312231299. The next prime is 201312231319. The reversal of 201312231302 is 203132213102.

It is a super-2 number, since 2×201312231302² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1972427 + ... + 2071977.

It is an arithmetic number, because the mean of its divisors is an integer number (5970730752).

Almost surely, 2^201312231302 is an apocalyptic number.

201312231302 is a deficient number, since it is larger than the sum of its proper divisors (180814536826).

201312231302 is a wasteful number, since it uses less digits than its factorization.

201312231302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99885.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 201312231302 its reverse (203132213102), we get a palindrome (404444444404).

The spelling of 201312231302 in words is "two hundred one billion, three hundred twelve million, two hundred thirty-one thousand, three hundred two".