31211100323 has 12 divisors (see below), whose sum is σ = 33801706008. Its totient is φ = 28805924160.

The previous prime is 31211100313. The next prime is 31211100341. The reversal of 31211100323 is 32300111213.

It is not a de Polignac number, because 31211100323 - 2¹⁰ = 31211099299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31211100313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1877936 + ... + 1894482.

It is an arithmetic number, because the mean of its divisors is an integer number (2816808834).

Almost surely, 2^31211100323 is an apocalyptic number.

31211100323 is a deficient number, since it is larger than the sum of its proper divisors (2590605685).

31211100323 is a wasteful number, since it uses less digits than its factorization.

31211100323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27734 (or 27721 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31211100323 its reverse (32300111213), we get a palindrome (63511211536).

The spelling of 31211100323 in words is "thirty-one billion, two hundred eleven million, one hundred thousand, three hundred twenty-three".