31401111412 has 24 divisors (see below), whose sum is σ = 59967119520. Its totient is φ = 14268579360.

The previous prime is 31401111409. The next prime is 31401111461. The reversal of 31401111412 is 21411110413.

It is a self number, because there is not a number n which added to its sum of digits gives 31401111412.

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 7 ways as a sum of consecutive naturals, for example, 22023 + ... + 251569.

It is an arithmetic number, because the mean of its divisors is an integer number (2498629980).

Almost surely, 2^31401111412 is an apocalyptic number.

It is an amenable number.

31401111412 is a deficient number, since it is larger than the sum of its proper divisors (28566008108).

31401111412 is a wasteful number, since it uses less digits than its factorization.

31401111412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232671 (or 232669 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 31401111412 its reverse (21411110413), we get a palindrome (52812221825).

Subtracting from 31401111412 its reverse (21411110413), we obtain a palindrome (9990000999).

The spelling of 31401111412 in words is "thirty-one billion, four hundred one million, one hundred eleven thousand, four hundred twelve".