40124233531 has 2 divisors, whose sum is σ = 40124233532. Its totient is φ = 40124233530.

The previous prime is 40124233483. The next prime is 40124233537. The reversal of 40124233531 is 13533242104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40124233531 - 2⁷ = 40124233403 is a prime.

It is a super-2 number, since 2×40124233531² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40124233531.

It is not a weakly prime, because it can be changed into another prime (40124233537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20062116765 + 20062116766.

It is an arithmetic number, because the mean of its divisors is an integer number (20062116766).

Almost surely, 2^40124233531 is an apocalyptic number.

40124233531 is a deficient number, since it is larger than the sum of its proper divisors (1).

40124233531 is an equidigital number, since it uses as much as digits as its factorization.

40124233531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 40124233531 its reverse (13533242104), we get a palindrome (53657475635).

The spelling of 40124233531 in words is "forty billion, one hundred twenty-four million, two hundred thirty-three thousand, five hundred thirty-one".