40212064231 has 8 divisors (see below), whose sum is σ = 42634797984. Its totient is φ = 37795699200.

The previous prime is 40212064213. The next prime is 40212064241. The reversal of 40212064231 is 13246021204.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40212064231 - 2⁹ = 40212063719 is a prime.

It is a super-2 number, since 2×40212064231² (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 = 40212064196 and 40212064205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40212064241) 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, 1579170 + ... + 1604431.

It is an arithmetic number, because the mean of its divisors is an integer number (5329349748).

Almost surely, 2^40212064231 is an apocalyptic number.

40212064231 is a deficient number, since it is larger than the sum of its proper divisors (2422733753).

40212064231 is a wasteful number, since it uses less digits than its factorization.

40212064231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184361.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 40212064231 its reverse (13246021204), we get a palindrome (53458085435).

The spelling of 40212064231 in words is "forty billion, two hundred twelve million, sixty-four thousand, two hundred thirty-one".