202311012245421 has 32 divisors (see below), whose sum is σ = 278264780771328. Its totient is φ = 130674436770240.

The previous prime is 202311012245417. The next prime is 202311012245453. The reversal of 202311012245421 is 124542210113202.

It is not a de Polignac number, because 202311012245421 - 2² = 202311012245417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202311012245491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36740731 + ... + 41886791.

It is an arithmetic number, because the mean of its divisors is an integer number (8695774399104).

Almost surely, 2^{202311012245421} is an apocalyptic number.

It is an amenable number.

202311012245421 is a deficient number, since it is larger than the sum of its proper divisors (75953768525907).

202311012245421 is a wasteful number, since it uses less digits than its factorization.

202311012245421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5148921.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 202311012245421 its reverse (124542210113202), we get a palindrome (326853222358623).

The spelling of 202311012245421 in words is "two hundred two trillion, three hundred eleven billion, twelve million, two hundred forty-five thousand, four hundred twenty-one".