40230203211021 has 4 divisors (see below), whose sum is σ = 53640270948032. Its totient is φ = 26820135474012.

The previous prime is 40230203210983. The next prime is 40230203211071. The reversal of 40230203211021 is 12011230203204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40230203211021 - 2²³ = 40230194822413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40230203211071) 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, 6705033868501 + ... + 6705033868506.

It is an arithmetic number, because the mean of its divisors is an integer number (13410067737008).

Almost surely, 2^{40230203211021} is an apocalyptic number.

It is an amenable number.

40230203211021 is a deficient number, since it is larger than the sum of its proper divisors (13410067737011).

40230203211021 is a wasteful number, since it uses less digits than its factorization.

40230203211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13410067737010.

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

Adding to 40230203211021 its reverse (12011230203204), we get a palindrome (52241433414225).

The spelling of 40230203211021 in words is "forty trillion, two hundred thirty billion, two hundred three million, two hundred eleven thousand, twenty-one".