31231100212134 has 32 divisors (see below), whose sum is σ = 62487957168000. Its totient is φ = 10406074307904.

The previous prime is 31231100212111. The next prime is 31231100212199. The reversal of 31231100212134 is 43121200113213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667036977 + ... + 667083795.

It is an arithmetic number, because the mean of its divisors is an integer number (1952748661500).

Almost surely, 2^{31231100212134} is an apocalyptic number.

31231100212134 is an abundant number, since it is smaller than the sum of its proper divisors (31256856955866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31231100212134 is a wasteful number, since it uses less digits than its factorization.

31231100212134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90292.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31231100212134 its reverse (43121200113213), we get a palindrome (74352300325347).

The spelling of 31231100212134 in words is "thirty-one trillion, two hundred thirty-one billion, one hundred million, two hundred twelve thousand, one hundred thirty-four".