1420312131 has 32 divisors (see below), whose sum is σ = 2407219200. Its totient is φ = 810777600.

The previous prime is 1420312097. The next prime is 1420312139. The reversal of 1420312131 is 1312130241.

1420312131 is a `hidden beast` number, since 1 + 420 + 31 + 213 + 1 = 666.

It is not a de Polignac number, because 1420312131 - 2⁶ = 1420312067 is a prime.

It is a super-2 number, since 2×1420312131² = 4034573098931522322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1420312139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214275 + ... + 220803.

It is an arithmetic number, because the mean of its divisors is an integer number (75225600).

Almost surely, 2^1420312131 is an apocalyptic number.

1420312131 is a deficient number, since it is larger than the sum of its proper divisors (986907069).

1420312131 is a wasteful number, since it uses less digits than its factorization.

1420312131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7696 (or 7690 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1420312131 is about 37687.0286836200. The cubic root of 1420312131 is about 1124.0732136025.

Adding to 1420312131 its reverse (1312130241), we get a palindrome (2732442372).

The spelling of 1420312131 in words is "one billion, four hundred twenty million, three hundred twelve thousand, one hundred thirty-one".