2421000203231 has 2 divisors, whose sum is σ = 2421000203232. Its totient is φ = 2421000203230.

The previous prime is 2421000203173. The next prime is 2421000203239. The reversal of 2421000203231 is 1323020001242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2421000203231 - 2²⁶ = 2420933094367 is a prime.

It is a super-2 number, since 2×2421000203231² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421000203239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210500101615 + 1210500101616.

It is an arithmetic number, because the mean of its divisors is an integer number (1210500101616).

Almost surely, 2^{2421000203231} is an apocalyptic number.

2421000203231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421000203231 is an equidigital number, since it uses as much as digits as its factorization.

2421000203231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2421000203231 its reverse (1323020001242), we get a palindrome (3744020204473).

The spelling of 2421000203231 in words is "two trillion, four hundred twenty-one billion, two hundred three thousand, two hundred thirty-one".