40120402232311 has 4 divisors (see below), whose sum is σ = 40185851502472. Its totient is φ = 40054952962152.

The previous prime is 40120402232179. The next prime is 40120402232321. The reversal of 40120402232311 is 11323220402104.

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 40120402232311 - 2¹⁷ = 40120402101239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40120402232321) 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, 32724634161 + ... + 32724635386.

It is an arithmetic number, because the mean of its divisors is an integer number (10046462875618).

Almost surely, 2^{40120402232311} is an apocalyptic number.

40120402232311 is a deficient number, since it is larger than the sum of its proper divisors (65449270161).

40120402232311 is an equidigital number, since it uses as much as digits as its factorization.

40120402232311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65449270160.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 40120402232311 its reverse (11323220402104), we get a palindrome (51443622634415).

The spelling of 40120402232311 in words is "forty trillion, one hundred twenty billion, four hundred two million, two hundred thirty-two thousand, three hundred eleven".