40130215531 has 16 divisors (see below), whose sum is σ = 46866760704. Its totient is φ = 33645455424.

The previous prime is 40130215519. The next prime is 40130215579. The reversal of 40130215531 is 13551203104.

It is a happy number.

It is not a de Polignac number, because 40130215531 - 2¹¹ = 40130213483 is a prime.

It is a super-2 number, since 2×40130215531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40130215496 and 40130215505.

It is not an unprimeable number, because it can be changed into a prime (40130215591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531471 + ... + 602263.

It is an arithmetic number, because the mean of its divisors is an integer number (2929172544).

Almost surely, 2^40130215531 is an apocalyptic number.

40130215531 is a deficient number, since it is larger than the sum of its proper divisors (6736545173).

40130215531 is a wasteful number, since it uses less digits than its factorization.

40130215531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72570.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 40130215531 its reverse (13551203104), we get a palindrome (53681418635).

The spelling of 40130215531 in words is "forty billion, one hundred thirty million, two hundred fifteen thousand, five hundred thirty-one".