2131020435 has 32 divisors (see below), whose sum is σ = 3472213248. Its totient is φ = 1115856000.

The previous prime is 2131020433. The next prime is 2131020481. The reversal of 2131020435 is 5340201312.

It is not a de Polignac number, because 2131020435 - 2¹ = 2131020433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131020433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197685 + ... + 208185.

It is an arithmetic number, because the mean of its divisors is an integer number (108506664).

Almost surely, 2^2131020435 is an apocalyptic number.

2131020435 is a deficient number, since it is larger than the sum of its proper divisors (1341192813).

2131020435 is a wasteful number, since it uses less digits than its factorization.

2131020435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10755.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2131020435 is about 46162.9768862451. The cubic root of 2131020435 is about 1286.8537864975.

Adding to 2131020435 its reverse (5340201312), we get a palindrome (7471221747).

The spelling of 2131020435 in words is "two billion, one hundred thirty-one million, twenty thousand, four hundred thirty-five".