712631311 has 4 divisors (see below), whose sum is σ = 814435792. Its totient is φ = 610826832.

The previous prime is 712631299. The next prime is 712631327. The reversal of 712631311 is 113136217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113136217 = 59 ⋅1917563.

It is not a de Polignac number, because 712631311 - 2¹⁵ = 712598543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712632311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50902230 + ... + 50902243.

It is an arithmetic number, because the mean of its divisors is an integer number (203608948).

Almost surely, 2^712631311 is an apocalyptic number.

712631311 is a deficient number, since it is larger than the sum of its proper divisors (101804481).

712631311 is a wasteful number, since it uses less digits than its factorization.

712631311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101804480.

The product of its digits is 756, while the sum is 25.

The square root of 712631311 is about 26695.1551971514. The cubic root of 712631311 is about 893.2128590074.

Adding to 712631311 its reverse (113136217), we get a palindrome (825767528).

The spelling of 712631311 in words is "seven hundred twelve million, six hundred thirty-one thousand, three hundred eleven".