315135020212 has 6 divisors (see below), whose sum is σ = 551486285378. Its totient is φ = 157567510104.

The previous prime is 315135020197. The next prime is 315135020267. The reversal of 315135020212 is 212020531513.

It can be written as a sum of positive squares in only one way, i.e., 290740953616 + 24394066596 = 539204^2 + 156186^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39391877523 + ... + 39391877530.

Almost surely, 2^315135020212 is an apocalyptic number.

It is an amenable number.

315135020212 is a deficient number, since it is larger than the sum of its proper divisors (236351265166).

315135020212 is a wasteful number, since it uses less digits than its factorization.

315135020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78783755057 (or 78783755055 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 315135020212 its reverse (212020531513), we get a palindrome (527155551725).

The spelling of 315135020212 in words is "three hundred fifteen billion, one hundred thirty-five million, twenty thousand, two hundred twelve".