103491261239 has 4 divisors (see below), whose sum is σ = 103498668000. Its totient is φ = 103483854480.

The previous prime is 103491261193. The next prime is 103491261277. The reversal of 103491261239 is 932162194301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103491261239 - 2²⁰ = 103490212663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103491261196 and 103491261205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103491261739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3682382 + ... + 3710379.

It is an arithmetic number, because the mean of its divisors is an integer number (25874667000).

Almost surely, 2^103491261239 is an apocalyptic number.

103491261239 is a deficient number, since it is larger than the sum of its proper divisors (7406761).

103491261239 is an equidigital number, since it uses as much as digits as its factorization.

103491261239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7406760.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 103491261239 in words is "one hundred three billion, four hundred ninety-one million, two hundred sixty-one thousand, two hundred thirty-nine".