2310002021 has 2 divisors, whose sum is σ = 2310002022. Its totient is φ = 2310002020.

The previous prime is 2310002017. The next prime is 2310002053. The reversal of 2310002021 is 1202000132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2295751396 + 14250625 = 47914^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 2310002021 - 2² = 2310002017 is a prime.

It is a super-2 number, since 2×2310002021² = 10672218674048168882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2310001993 and 2310002011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2310002521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155001010 + 1155001011.

It is an arithmetic number, because the mean of its divisors is an integer number (1155001011).

Almost surely, 2^2310002021 is an apocalyptic number.

It is an amenable number.

2310002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2310002021 is an equidigital number, since it uses as much as digits as its factorization.

2310002021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2310002021 is about 48062.4803875123. The cubic root of 2310002021 is about 1321.9167937955.

Adding to 2310002021 its reverse (1202000132), we get a palindrome (3512002153).

The spelling of 2310002021 in words is "two billion, three hundred ten million, two thousand, twenty-one".