31200000213 has 16 divisors (see below), whose sum is σ = 42734722176. Its totient is φ = 20232912960.

The previous prime is 31200000179. The next prime is 31200000229.

It is a happy number.

31200000213 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31200000213 - 2¹⁸ = 31199738069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200000113) 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, 455395 + ... + 519407.

It is an arithmetic number, because the mean of its divisors is an integer number (2670920136).

Almost surely, 2^31200000213 is an apocalyptic number.

It is an amenable number.

31200000213 is a deficient number, since it is larger than the sum of its proper divisors (11534721963).

31200000213 is a wasteful number, since it uses less digits than its factorization.

31200000213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68444.

The product of its (nonzero) digits is 36, while the sum is 12.

It can be divided in two parts, 31200000 and 213, that added together give a palindrome (31200213).

The spelling of 31200000213 in words is "thirty-one billion, two hundred million, two hundred thirteen", and thus it is an aban number.