40120100431 has 32 divisors (see below), whose sum is σ = 42806880000. Its totient is φ = 37541457408.

The previous prime is 40120100429. The next prime is 40120100507. The reversal of 40120100431 is 13400102104.

40120100431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40120100431 - 2¹ = 40120100429 is a prime.

It is a super-2 number, since 2×40120100431² (a number of 22 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 (40120100401) 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, 54733741 + ... + 54734473.

It is an arithmetic number, because the mean of its divisors is an integer number (1337715000).

Almost surely, 2^40120100431 is an apocalyptic number.

40120100431 is a deficient number, since it is larger than the sum of its proper divisors (2686779569).

40120100431 is a wasteful number, since it uses less digits than its factorization.

40120100431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 40120100431 its reverse (13400102104), we get a palindrome (53520202535).

The spelling of 40120100431 in words is "forty billion, one hundred twenty million, one hundred thousand, four hundred thirty-one".