40323121131 has 8 divisors (see below), whose sum is σ = 53774910784. Its totient is φ = 26876706120.

The previous prime is 40323121099. The next prime is 40323121147. The reversal of 40323121131 is 13112132304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40323121131 - 2⁵ = 40323121099 is a prime.

It is a super-2 number, since 2×40323121131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40323121098 and 40323121107.

It is not an unprimeable number, because it can be changed into a prime (40323121231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326121 + ... + 1356186.

It is an arithmetic number, because the mean of its divisors is an integer number (6721863848).

Almost surely, 2^40323121131 is an apocalyptic number.

40323121131 is a deficient number, since it is larger than the sum of its proper divisors (13451789653).

40323121131 is a wasteful number, since it uses less digits than its factorization.

40323121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687321.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 40323121131 its reverse (13112132304), we get a palindrome (53435253435).

The spelling of 40323121131 in words is "forty billion, three hundred twenty-three million, one hundred twenty-one thousand, one hundred thirty-one".