40430135131020 has 96 divisors (see below), whose sum is σ = 125784732830400. Its totient is φ = 10781190208512.

The previous prime is 40430135131007. The next prime is 40430135131031. The reversal of 40430135131020 is 2013153103404.

It is a happy number.

40430135131020 is a `hidden beast` number, since 4 + 0 + 4 + 30 + 13 + 513 + 102 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33650482 + ... + 34831238.

It is an arithmetic number, because the mean of its divisors is an integer number (1310257633650).

Almost surely, 2^{40430135131020} is an apocalyptic number.

It is an amenable number.

40430135131020 is an abundant number, since it is smaller than the sum of its proper divisors (85354597699380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40430135131020 is a wasteful number, since it uses less digits than its factorization.

40430135131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244184 (or 1244176 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 40430135131020 its reverse (2013153103404), we get a palindrome (42443288234424).

The spelling of 40430135131020 in words is "forty trillion, four hundred thirty billion, one hundred thirty-five million, one hundred thirty-one thousand, twenty".