40231220210031 has 16 divisors (see below), whose sum is σ = 53674712098560. Its totient is φ = 26804275881600.

The previous prime is 40231220210017. The next prime is 40231220210033. The reversal of 40231220210031 is 13001202213204.

It is not a de Polignac number, because 40231220210031 - 2⁹ = 40231220209519 is a prime.

It is a super-2 number, since 2×40231220210031² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231220210033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31841100 + ... + 33080478.

It is an arithmetic number, because the mean of its divisors is an integer number (3354669506160).

Almost surely, 2^{40231220210031} is an apocalyptic number.

40231220210031 is a deficient number, since it is larger than the sum of its proper divisors (13443491888529).

40231220210031 is a wasteful number, since it uses less digits than its factorization.

40231220210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246046.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 40231220210031 its reverse (13001202213204), we get a palindrome (53232422423235).

The spelling of 40231220210031 in words is "forty trillion, two hundred thirty-one billion, two hundred twenty million, two hundred ten thousand, thirty-one".