40653312331 has 4 divisors (see below), whose sum is σ = 40783195432. Its totient is φ = 40523429232.

The previous prime is 40653312307. The next prime is 40653312341. The reversal of 40653312331 is 13321335604.

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 40653312331 - 2¹¹ = 40653310283 is a prime.

It is a super-2 number, since 2×40653312331² (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 = 40653312293 and 40653312302.

It is not an unprimeable number, because it can be changed into a prime (40653312341) 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, 64941081 + ... + 64941706.

It is an arithmetic number, because the mean of its divisors is an integer number (10195798858).

Almost surely, 2^40653312331 is an apocalyptic number.

40653312331 is a deficient number, since it is larger than the sum of its proper divisors (129883101).

40653312331 is a wasteful number, since it uses less digits than its factorization.

40653312331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129883100.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 40653312331 its reverse (13321335604), we get a palindrome (53974647935).

The spelling of 40653312331 in words is "forty billion, six hundred fifty-three million, three hundred twelve thousand, three hundred thirty-one".