31424012011 has 48 divisors (see below), whose sum is σ = 39449514240. Its totient is φ = 24443415360.

The previous prime is 31424011999. The next prime is 31424012021. The reversal of 31424012011 is 11021042413.

It is not a de Polignac number, because 31424012011 - 2²³ = 31415623403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31424012011.

It is not an unprimeable number, because it can be changed into a prime (31424012021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13032396 + ... + 13034806.

It is an arithmetic number, because the mean of its divisors is an integer number (821864880).

Almost surely, 2^31424012011 is an apocalyptic number.

31424012011 is a deficient number, since it is larger than the sum of its proper divisors (8025502229).

31424012011 is a wasteful number, since it uses less digits than its factorization.

31424012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576 (or 2533 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 31424012011 its reverse (11021042413), we get a palindrome (42445054424).

The spelling of 31424012011 in words is "thirty-one billion, four hundred twenty-four million, twelve thousand, eleven".