31420011 has 16 divisors (see below), whose sum is σ = 48063488. Its totient is φ = 17884800.

The previous prime is 31420009. The next prime is 31420027. The reversal of 31420011 is 11002413.

It is a happy number.

It is not a de Polignac number, because 31420011 - 2¹ = 31420009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31422011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2931 + ... + 8451.

It is an arithmetic number, because the mean of its divisors is an integer number (3003968).

Almost surely, 2^31420011 is an apocalyptic number.

31420011 is a deficient number, since it is larger than the sum of its proper divisors (16643477).

31420011 is a wasteful number, since it uses less digits than its factorization.

31420011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5802.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 31420011 is about 5605.3555641012. The cubic root of 31420011 is about 315.5504309150.

Adding to 31420011 its reverse (11002413), we get a palindrome (42422424).

The spelling of 31420011 in words is "thirty-one million, four hundred twenty thousand, eleven".