40120423134 has 16 divisors (see below), whose sum is σ = 87535468800. Its totient is φ = 12157703960.

The previous prime is 40120423117. The next prime is 40120423141. The reversal of 40120423134 is 43132402104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303942534 + ... + 303942665.

It is an arithmetic number, because the mean of its divisors is an integer number (5470966800).

Almost surely, 2^40120423134 is an apocalyptic number.

40120423134 is an abundant number, since it is smaller than the sum of its proper divisors (47415045666).

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

40120423134 is a wasteful number, since it uses less digits than its factorization.

40120423134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607885215.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 40120423134 its reverse (43132402104), we get a palindrome (83252825238).

The spelling of 40120423134 in words is "forty billion, one hundred twenty million, four hundred twenty-three thousand, one hundred thirty-four".