2131201430 has 32 divisors (see below), whose sum is σ = 4069046016. Its totient is φ = 800907264.

The previous prime is 2131201427. The next prime is 2131201433. The reversal of 2131201430 is 341021312.

It is an interprime number because it is at equal distance from previous prime (2131201427) and next prime (2131201433).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 2131201399 and 2131201408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131201433) 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, 87227 + ... + 108953.

It is an arithmetic number, because the mean of its divisors is an integer number (127157688).

Almost surely, 2^2131201430 is an apocalyptic number.

2131201430 is a deficient number, since it is larger than the sum of its proper divisors (1937844586).

2131201430 is a wasteful number, since it uses less digits than its factorization.

2131201430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22328.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2131201430 is about 46164.9372359586. The cubic root of 2131201430 is about 1286.8902177933.

Adding to 2131201430 its reverse (341021312), we get a palindrome (2472222742).

The spelling of 2131201430 in words is "two billion, one hundred thirty-one million, two hundred one thousand, four hundred thirty".