103423215531 has 4 divisors (see below), whose sum is σ = 137897620712. Its totient is φ = 68948810352.

The previous prime is 103423215499. The next prime is 103423215541. The reversal of 103423215531 is 135512324301.

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

It is not a de Polignac number, because 103423215531 - 2⁵ = 103423215499 is a prime.

It is a super-2 number, since 2×103423215531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103423215541) 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, 17237202586 + ... + 17237202591.

It is an arithmetic number, because the mean of its divisors is an integer number (34474405178).

Almost surely, 2^103423215531 is an apocalyptic number.

103423215531 is a deficient number, since it is larger than the sum of its proper divisors (34474405181).

103423215531 is an equidigital number, since it uses as much as digits as its factorization.

103423215531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34474405180.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 103423215531 its reverse (135512324301), we get a palindrome (238935539832).

The spelling of 103423215531 in words is "one hundred three billion, four hundred twenty-three million, two hundred fifteen thousand, five hundred thirty-one".