210204003138431 has 2 divisors, whose sum is σ = 210204003138432. Its totient is φ = 210204003138430.

The previous prime is 210204003138401. The next prime is 210204003138473. The reversal of 210204003138431 is 134831300402012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210204003138431 - 2²² = 210203998944127 is a prime.

It is a super-2 number, since 2×210204003138431² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210204003138401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105102001569215 + 105102001569216.

It is an arithmetic number, because the mean of its divisors is an integer number (105102001569216).

Almost surely, 2^{210204003138431} is an apocalyptic number.

210204003138431 is a deficient number, since it is larger than the sum of its proper divisors (1).

210204003138431 is an equidigital number, since it uses as much as digits as its factorization.

210204003138431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 210204003138431 in words is "two hundred ten trillion, two hundred four billion, three million, one hundred thirty-eight thousand, four hundred thirty-one".