31321431422411 has 8 divisors (see below), whose sum is σ = 33732304920720. Its totient is φ = 28910776869792.

The previous prime is 31321431422399. The next prime is 31321431422419. The reversal of 31321431422411 is 11422413412313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31321431422411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31321431422419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54439241 + ... + 55011578.

It is an arithmetic number, because the mean of its divisors is an integer number (4216538115090).

Almost surely, 2^{31321431422411} is an apocalyptic number.

31321431422411 is a deficient number, since it is larger than the sum of its proper divisors (2410873498309).

31321431422411 is a wasteful number, since it uses less digits than its factorization.

31321431422411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109472845.

The product of its digits is 13824, while the sum is 32.

Adding to 31321431422411 its reverse (11422413412313), we get a palindrome (42743844834724).

It can be divided in two parts, 3132143 and 1422411, that added together give a palindrome (4554554).

The spelling of 31321431422411 in words is "thirty-one trillion, three hundred twenty-one billion, four hundred thirty-one million, four hundred twenty-two thousand, four hundred eleven".