23103123299981 has 2 divisors, whose sum is σ = 23103123299982. Its totient is φ = 23103123299980.

The previous prime is 23103123299947. The next prime is 23103123299999. The reversal of 23103123299981 is 18999232130132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17055999671881 + 6047123628100 = 4129891^2 + 2459090^2 .

It is a cyclic number.

It is not a de Polignac number, because 23103123299981 - 2¹⁸ = 23103123037837 is a prime.

It is a super-2 number, since 2×23103123299981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23103123299381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11551561649990 + 11551561649991.

It is an arithmetic number, because the mean of its divisors is an integer number (11551561649991).

Almost surely, 2^{23103123299981} is an apocalyptic number.

It is an amenable number.

23103123299981 is a deficient number, since it is larger than the sum of its proper divisors (1).

23103123299981 is an equidigital number, since it uses as much as digits as its factorization.

23103123299981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The spelling of 23103123299981 in words is "twenty-three trillion, one hundred three billion, one hundred twenty-three million, two hundred ninety-nine thousand, nine hundred eighty-one".