10145312621 has 2 divisors, whose sum is σ = 10145312622. Its totient is φ = 10145312620.

The previous prime is 10145312603. The next prime is 10145312623. The reversal of 10145312621 is 12621354101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9168062500 + 977250121 = 95750^2 + 31261^2 .

It is a cyclic number.

It is not a de Polignac number, because 10145312621 - 2¹⁴ = 10145296237 is a prime.

Together with 10145312623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10145312623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5072656310 + 5072656311.

It is an arithmetic number, because the mean of its divisors is an integer number (5072656311).

Almost surely, 2^10145312621 is an apocalyptic number.

It is an amenable number.

10145312621 is a deficient number, since it is larger than the sum of its proper divisors (1).

10145312621 is an equidigital number, since it uses as much as digits as its factorization.

10145312621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 10145312621 its reverse (12621354101), we get a palindrome (22766666722).

The spelling of 10145312621 in words is "ten billion, one hundred forty-five million, three hundred twelve thousand, six hundred twenty-one".