31341401311 has 4 divisors (see below), whose sum is σ = 34190619624. Its totient is φ = 28492183000.

The previous prime is 31341401309. The next prime is 31341401323. The reversal of 31341401311 is 11310414313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31341401311 - 2¹ = 31341401309 is a prime.

It is a super-2 number, since 2×31341401311² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31341441311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1424609140 + ... + 1424609161.

It is an arithmetic number, because the mean of its divisors is an integer number (8547654906).

Almost surely, 2^31341401311 is an apocalyptic number.

31341401311 is a deficient number, since it is larger than the sum of its proper divisors (2849218313).

31341401311 is a wasteful number, since it uses less digits than its factorization.

31341401311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849218312.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31341401311 its reverse (11310414313), we get a palindrome (42651815624).

The spelling of 31341401311 in words is "thirty-one billion, three hundred forty-one million, four hundred one thousand, three hundred eleven".