31423301112 has 64 divisors (see below), whose sum is σ = 89815046400. Its totient is φ = 8974667520.

The previous prime is 31423301089. The next prime is 31423301131. The reversal of 31423301112 is 21110332413.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424564 + ... + 493052.

It is an arithmetic number, because the mean of its divisors is an integer number (1403360100).

Almost surely, 2^31423301112 is an apocalyptic number.

It is an amenable number.

31423301112 is an abundant number, since it is smaller than the sum of its proper divisors (58391745288).

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

31423301112 is a wasteful number, since it uses less digits than its factorization.

31423301112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71236 (or 71232 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31423301112 its reverse (21110332413), we get a palindrome (52533633525).

The spelling of 31423301112 in words is "thirty-one billion, four hundred twenty-three million, three hundred one thousand, one hundred twelve".