421153055731 has 2 divisors, whose sum is σ = 421153055732. Its totient is φ = 421153055730.

The previous prime is 421153055717. The next prime is 421153055759. The reversal of 421153055731 is 137550351124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421153055731 - 2¹¹ = 421153053683 is a prime.

It is a super-2 number, since 2×421153055731² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (421153055831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210576527865 + 210576527866.

It is an arithmetic number, because the mean of its divisors is an integer number (210576527866).

Almost surely, 2^421153055731 is an apocalyptic number.

421153055731 is a deficient number, since it is larger than the sum of its proper divisors (1).

421153055731 is an equidigital number, since it uses as much as digits as its factorization.

421153055731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 421153055731 in words is "four hundred twenty-one billion, one hundred fifty-three million, fifty-five thousand, seven hundred thirty-one".