31012440411 has 4 divisors (see below), whose sum is σ = 41349920552. Its totient is φ = 20674960272.

The previous prime is 31012440367. The next prime is 31012440461. The reversal of 31012440411 is 11404421013.

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

It is not a de Polignac number, because 31012440411 - 2¹¹ = 31012438363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31012440461) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5168740066 + ... + 5168740071.

It is an arithmetic number, because the mean of its divisors is an integer number (10337480138).

Almost surely, 2^31012440411 is an apocalyptic number.

31012440411 is a deficient number, since it is larger than the sum of its proper divisors (10337480141).

31012440411 is a wasteful number, since it uses less digits than its factorization.

31012440411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10337480140.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 31012440411 its reverse (11404421013), we get a palindrome (42416861424).

The spelling of 31012440411 in words is "thirty-one billion, twelve million, four hundred forty thousand, four hundred eleven".