10313921 has 2 divisors, whose sum is σ = 10313922. Its totient is φ = 10313920.

The previous prime is 10313911. The next prime is 10313987. The reversal of 10313921 is 12931301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9610000 + 703921 = 3100^2 + 839^2 .

It is a cyclic number.

It is not a de Polignac number, because 10313921 - 2⁶ = 10313857 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 10313893 and 10313902.

It is not a weakly prime, because it can be changed into another prime (10313911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5156960 + 5156961.

It is an arithmetic number, because the mean of its divisors is an integer number (5156961).

Almost surely, 2^10313921 is an apocalyptic number.

It is an amenable number.

10313921 is a deficient number, since it is larger than the sum of its proper divisors (1).

10313921 is an equidigital number, since it uses as much as digits as its factorization.

10313921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 10313921 is about 3211.5293864450. The cubic root of 10313921 is about 217.6746894453.

The spelling of 10313921 in words is "ten million, three hundred thirteen thousand, nine hundred twenty-one".