40120031331 has 24 divisors (see below), whose sum is σ = 61383155184. Its totient is φ = 25163873280.

The previous prime is 40120031323. The next prime is 40120031339. The reversal of 40120031331 is 13313002104.

40120031331 is a `hidden beast` number, since 401 + 200 + 31 + 3 + 31 = 666.

40120031331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40120031323) and next prime (40120031339).

It is not a de Polignac number, because 40120031331 - 2³ = 40120031323 is a prime.

It is a super-2 number, since 2×40120031331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40120031339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 369835 + ... + 465851.

It is an arithmetic number, because the mean of its divisors is an integer number (2557631466).

Almost surely, 2^40120031331 is an apocalyptic number.

40120031331 is a deficient number, since it is larger than the sum of its proper divisors (21263123853).

40120031331 is a wasteful number, since it uses less digits than its factorization.

40120031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98771 (or 98768 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 40120031331 its reverse (13313002104), we get a palindrome (53433033435).

The spelling of 40120031331 in words is "forty billion, one hundred twenty million, thirty-one thousand, three hundred thirty-one".