100208012969 has 2 divisors, whose sum is σ = 100208012970. Its totient is φ = 100208012968.

The previous prime is 100208012911. The next prime is 100208012977. The reversal of 100208012969 is 969210802001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99758064025 + 449948944 = 315845^2 + 21212^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100208012969 is a prime.

It is a super-2 number, since 2×100208012969² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100208017969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50104006484 + 50104006485.

It is an arithmetic number, because the mean of its divisors is an integer number (50104006485).

Almost surely, 2^100208012969 is an apocalyptic number.

It is an amenable number.

100208012969 is a deficient number, since it is larger than the sum of its proper divisors (1).

100208012969 is an equidigital number, since it uses as much as digits as its factorization.

100208012969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 100208012969 in words is "one hundred billion, two hundred eight million, twelve thousand, nine hundred sixty-nine".