31213233201 has 16 divisors (see below), whose sum is σ = 42283978880. Its totient is φ = 20476955520.

The previous prime is 31213233187. The next prime is 31213233253. The reversal of 31213233201 is 10233231213.

It is not a de Polignac number, because 31213233201 - 2⁵ = 31213233169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31213232201) 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, 66190 + ... + 258471.

It is an arithmetic number, because the mean of its divisors is an integer number (2642748680).

Almost surely, 2^31213233201 is an apocalyptic number.

It is an amenable number.

31213233201 is a deficient number, since it is larger than the sum of its proper divisors (11070745679).

31213233201 is a wasteful number, since it uses less digits than its factorization.

31213233201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325176.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31213233201 its reverse (10233231213), we get a palindrome (41446464414).

The spelling of 31213233201 in words is "thirty-one billion, two hundred thirteen million, two hundred thirty-three thousand, two hundred one".