2131456103 has 16 divisors (see below), whose sum is σ = 2469319680. Its totient is φ = 1801983456.

The previous prime is 2131456091. The next prime is 2131456111. The reversal of 2131456103 is 3016541312.

It is not a de Polignac number, because 2131456103 - 2¹⁸ = 2131193959 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 (2131456133) 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, 951701 + ... + 953937.

It is an arithmetic number, because the mean of its divisors is an integer number (154332480).

Almost surely, 2^2131456103 is an apocalyptic number.

2131456103 is a deficient number, since it is larger than the sum of its proper divisors (337863577).

2131456103 is a wasteful number, since it uses less digits than its factorization.

2131456103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2131456103 is about 46167.6954482244. The cubic root of 2131456103 is about 1286.9414757573.

Adding to 2131456103 its reverse (3016541312), we get a palindrome (5147997415).

The spelling of 2131456103 in words is "two billion, one hundred thirty-one million, four hundred fifty-six thousand, one hundred three".