40212011431 has 4 divisors (see below), whose sum is σ = 40250939872. Its totient is φ = 40173082992.

The previous prime is 40212011423. The next prime is 40212011459. The reversal of 40212011431 is 13411021204.

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 40212011431 - 2³ = 40212011423 is a prime.

It is a super-2 number, since 2×40212011431² (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 = 40212011399 and 40212011408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40212011401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19462671 + ... + 19464736.

It is an arithmetic number, because the mean of its divisors is an integer number (10062734968).

Almost surely, 2^40212011431 is an apocalyptic number.

40212011431 is a deficient number, since it is larger than the sum of its proper divisors (38928441).

40212011431 is a wasteful number, since it uses less digits than its factorization.

40212011431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38928440.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 40212011431 its reverse (13411021204), we get a palindrome (53623032635).

The spelling of 40212011431 in words is "forty billion, two hundred twelve million, eleven thousand, four hundred thirty-one".