100238219531 has 2 divisors, whose sum is σ = 100238219532. Its totient is φ = 100238219530.

The previous prime is 100238219449. The next prime is 100238219567. The reversal of 100238219531 is 135912832001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100238219531 - 2²⁶ = 100171110667 is a prime.

It is a super-2 number, since 2×100238219531² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100238219491 and 100238219500.

It is not a weakly prime, because it can be changed into another prime (100238419531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50119109765 + 50119109766.

It is an arithmetic number, because the mean of its divisors is an integer number (50119109766).

Almost surely, 2^100238219531 is an apocalyptic number.

100238219531 is a deficient number, since it is larger than the sum of its proper divisors (1).

100238219531 is an equidigital number, since it uses as much as digits as its factorization.

100238219531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 100238219531 in words is "one hundred billion, two hundred thirty-eight million, two hundred nineteen thousand, five hundred thirty-one".