40012214231 has 4 divisors (see below), whose sum is σ = 43649688264. Its totient is φ = 36374740200.

The previous prime is 40012214227. The next prime is 40012214243. The reversal of 40012214231 is 13241221004.

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 40012214231 - 2² = 40012214227 is a prime.

It is a super-2 number, since 2×40012214231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40012414231) 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, 1818737000 + ... + 1818737021.

It is an arithmetic number, because the mean of its divisors is an integer number (10912422066).

Almost surely, 2^40012214231 is an apocalyptic number.

40012214231 is a deficient number, since it is larger than the sum of its proper divisors (3637474033).

40012214231 is a wasteful number, since it uses less digits than its factorization.

40012214231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637474032.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 40012214231 its reverse (13241221004), we get a palindrome (53253435235).

The spelling of 40012214231 in words is "forty billion, twelve million, two hundred fourteen thousand, two hundred thirty-one".