33103242131 has 4 divisors (see below), whose sum is σ = 34542513552. Its totient is φ = 31663970712.

The previous prime is 33103242083. The next prime is 33103242167. The reversal of 33103242131 is 13124230133.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33103242131 is a prime.

It is a super-2 number, since 2×33103242131² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1439271397 = 33103242131 / (3 + 3 + 1 + 0 + 3 + 2 + 4 + 2 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33103242097 and 33103242106.

It is not an unprimeable number, because it can be changed into a prime (33103242181) 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, 719635676 + ... + 719635721.

It is an arithmetic number, because the mean of its divisors is an integer number (8635628388).

Almost surely, 2^33103242131 is an apocalyptic number.

33103242131 is a deficient number, since it is larger than the sum of its proper divisors (1439271421).

33103242131 is a wasteful number, since it uses less digits than its factorization.

33103242131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439271420.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 33103242131 its reverse (13124230133), we get a palindrome (46227472264).

The spelling of 33103242131 in words is "thirty-three billion, one hundred three million, two hundred forty-two thousand, one hundred thirty-one".