10331400421 has 2 divisors, whose sum is σ = 10331400422. Its totient is φ = 10331400420.

The previous prime is 10331400377. The next prime is 10331400433. The reversal of 10331400421 is 12400413301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9425691396 + 905709025 = 97086^2 + 30095^2 .

It is an emirp because it is prime and its reverse (12400413301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10331400421 - 2²⁹ = 9794529509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10334400421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5165700210 + 5165700211.

It is an arithmetic number, because the mean of its divisors is an integer number (5165700211).

Almost surely, 2^10331400421 is an apocalyptic number.

It is an amenable number.

10331400421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10331400421 is an equidigital number, since it uses as much as digits as its factorization.

10331400421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10331400421 its reverse (12400413301), we get a palindrome (22731813722).

The spelling of 10331400421 in words is "ten billion, three hundred thirty-one million, four hundred thousand, four hundred twenty-one".