2102420131 has 8 divisors (see below), whose sum is σ = 2408945760. Its totient is φ = 1797439488.

The previous prime is 2102420119. The next prime is 2102420137. The reversal of 2102420131 is 1310242012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102420131 is a prime.

It is a super-2 number, since 2×2102420131² = 8840340814468114322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102420137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383326 + ... + 388771.

It is an arithmetic number, because the mean of its divisors is an integer number (301118220).

Almost surely, 2^2102420131 is an apocalyptic number.

2102420131 is a deficient number, since it is larger than the sum of its proper divisors (306525629).

2102420131 is an equidigital number, since it uses as much as digits as its factorization.

2102420131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772493.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2102420131 is about 45852.1551401894. The cubic root of 2102420131 is about 1281.0709077744.

Adding to 2102420131 its reverse (1310242012), we get a palindrome (3412662143).

The spelling of 2102420131 in words is "two billion, one hundred two million, four hundred twenty thousand, one hundred thirty-one".