2131703530 has 32 divisors (see below), whose sum is σ = 4320926208. Its totient is φ = 750158400.

The previous prime is 2131703489. The next prime is 2131703597. The reversal of 2131703530 is 353071312.

It is a junction number, because it is equal to n+sod(n) for n = 2131703495 and 2131703504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309157 + ... + 315976.

It is an arithmetic number, because the mean of its divisors is an integer number (135028944).

Almost surely, 2^2131703530 is an apocalyptic number.

2131703530 is an abundant number, since it is smaller than the sum of its proper divisors (2189222678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131703530 is a wasteful number, since it uses less digits than its factorization.

2131703530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625182.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 2131703530 is about 46170.3750255507. The cubic root of 2131703530 is about 1286.9912714107.

Adding to 2131703530 its reverse (353071312), we get a palindrome (2484774842).

The spelling of 2131703530 in words is "two billion, one hundred thirty-one million, seven hundred three thousand, five hundred thirty".