100362239981 has 2 divisors, whose sum is σ = 100362239982. Its totient is φ = 100362239980.

The previous prime is 100362239947. The next prime is 100362240029. The reversal of 100362239981 is 189932263001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58310175625 + 42052064356 = 241475^2 + 205066^2 .

It is a cyclic number.

It is not a de Polignac number, because 100362239981 - 2²⁶ = 100295131117 is a prime.

It is a super-2 number, since 2×100362239981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100362239921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50181119990 + 50181119991.

It is an arithmetic number, because the mean of its divisors is an integer number (50181119991).

Almost surely, 2^100362239981 is an apocalyptic number.

It is an amenable number.

100362239981 is a deficient number, since it is larger than the sum of its proper divisors (1).

100362239981 is an equidigital number, since it uses as much as digits as its factorization.

100362239981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 100362239981 in words is "one hundred billion, three hundred sixty-two million, two hundred thirty-nine thousand, nine hundred eighty-one".