40513120503431 has 4 divisors (see below), whose sum is σ = 40781419314864. Its totient is φ = 40244821692000.

The previous prime is 40513120503409. The next prime is 40513120503521. The reversal of 40513120503431 is 13430502131504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40513120503431 - 2¹⁸ = 40513120241287 is a prime.

It is a super-2 number, since 2×40513120503431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40513120503731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134149405490 + ... + 134149405791.

It is an arithmetic number, because the mean of its divisors is an integer number (10195354828716).

Almost surely, 2^{40513120503431} is an apocalyptic number.

40513120503431 is a deficient number, since it is larger than the sum of its proper divisors (268298811433).

40513120503431 is a wasteful number, since it uses less digits than its factorization.

40513120503431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268298811432.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 40513120503431 its reverse (13430502131504), we get a palindrome (53943622634935).

The spelling of 40513120503431 in words is "forty trillion, five hundred thirteen billion, one hundred twenty million, five hundred three thousand, four hundred thirty-one".