40045420131 has 16 divisors (see below), whose sum is σ = 53673413760. Its totient is φ = 26557312320.

The previous prime is 40045420123. The next prime is 40045420139. The reversal of 40045420131 is 13102454004.

40045420131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40045420123) and next prime (40045420139).

It is not a de Polignac number, because 40045420131 - 2³ = 40045420123 is a prime.

It is a super-2 number, since 2×40045420131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40045420139) 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, 1364791 + ... + 1393823.

It is an arithmetic number, because the mean of its divisors is an integer number (3354588360).

Almost surely, 2^40045420131 is an apocalyptic number.

40045420131 is a deficient number, since it is larger than the sum of its proper divisors (13627993629).

40045420131 is a wasteful number, since it uses less digits than its factorization.

40045420131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31426.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 40045420131 its reverse (13102454004), we get a palindrome (53147874135).

The spelling of 40045420131 in words is "forty billion, forty-five million, four hundred twenty thousand, one hundred thirty-one".