10020112309 has 2 divisors, whose sum is σ = 10020112310. Its totient is φ = 10020112308.

The previous prime is 10020112187. The next prime is 10020112331. The reversal of 10020112309 is 90321102001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5886265284 + 4133847025 = 76722^2 + 64295^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020112309 - 2¹⁹ = 10019588021 is a prime.

It is a super-2 number, since 2×10020112309² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020112379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010056154 + 5010056155.

It is an arithmetic number, because the mean of its divisors is an integer number (5010056155).

Almost surely, 2^10020112309 is an apocalyptic number.

It is an amenable number.

10020112309 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020112309 is an equidigital number, since it uses as much as digits as its factorization.

10020112309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The spelling of 10020112309 in words is "ten billion, twenty million, one hundred twelve thousand, three hundred nine".