103525021331 has 4 divisors (see below), whose sum is σ = 103527428664. Its totient is φ = 103522614000.

The previous prime is 103525021319. The next prime is 103525021337. The reversal of 103525021331 is 133120525301.

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 103525021331 - 2¹⁰ = 103525020307 is a prime.

It is a super-2 number, since 2×103525021331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103525021331.

It is not an unprimeable number, because it can be changed into a prime (103525021337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1137965 + ... + 1225566.

It is an arithmetic number, because the mean of its divisors is an integer number (25881857166).

Almost surely, 2^103525021331 is an apocalyptic number.

103525021331 is a deficient number, since it is larger than the sum of its proper divisors (2407333).

103525021331 is an equidigital number, since it uses as much as digits as its factorization.

103525021331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407332.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 103525021331 its reverse (133120525301), we get a palindrome (236645546632).

The spelling of 103525021331 in words is "one hundred three billion, five hundred twenty-five million, twenty-one thousand, three hundred thirty-one".