101231201503 has 16 divisors (see below), whose sum is σ = 110187376704. Its totient is φ = 92613404160.

The previous prime is 101231201459. The next prime is 101231201509. The reversal of 101231201503 is 305102132101.

It is a cyclic number.

It is not a de Polignac number, because 101231201503 - 2²⁵ = 101197647071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231201509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 591526 + ... + 743212.

It is an arithmetic number, because the mean of its divisors is an integer number (6886711044).

Almost surely, 2^101231201503 is an apocalyptic number.

101231201503 is a deficient number, since it is larger than the sum of its proper divisors (8956175201).

101231201503 is a wasteful number, since it uses less digits than its factorization.

101231201503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152802.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 101231201503 its reverse (305102132101), we get a palindrome (406333333604).

The spelling of 101231201503 in words is "one hundred one billion, two hundred thirty-one million, two hundred one thousand, five hundred three".