2103031232131 has 4 divisors (see below), whose sum is σ = 2103056624592. Its totient is φ = 2103005839672.

The previous prime is 2103031232111. The next prime is 2103031232143. The reversal of 2103031232131 is 1312321303012.

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-2103031232131 is a prime.

It is a super-2 number, since 2×2103031232131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103031232111) 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, 12571591 + ... + 12737776.

It is an arithmetic number, because the mean of its divisors is an integer number (525764156148).

Almost surely, 2^{2103031232131} is an apocalyptic number.

2103031232131 is a deficient number, since it is larger than the sum of its proper divisors (25392461).

2103031232131 is an equidigital number, since it uses as much as digits as its factorization.

2103031232131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25392460.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2103031232131 its reverse (1312321303012), we get a palindrome (3415352535143).

The spelling of 2103031232131 in words is "two trillion, one hundred three billion, thirty-one million, two hundred thirty-two thousand, one hundred thirty-one".