10121501249 has 2 divisors, whose sum is σ = 10121501250. Its totient is φ = 10121501248.

The previous prime is 10121501177. The next prime is 10121501281. The reversal of 10121501249 is 94210512101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9677640625 + 443860624 = 98375^2 + 21068^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121501249 - 2²⁴ = 10104724033 is a prime.

It is not a weakly prime, because it can be changed into another prime (10121504249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060750624 + 5060750625.

It is an arithmetic number, because the mean of its divisors is an integer number (5060750625).

Almost surely, 2^10121501249 is an apocalyptic number.

It is an amenable number.

10121501249 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121501249 is an equidigital number, since it uses as much as digits as its factorization.

10121501249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 10121501249 in words is "ten billion, one hundred twenty-one million, five hundred one thousand, two hundred forty-nine".