2131242999 has 8 divisors (see below), whose sum is σ = 2884070400. Its totient is φ = 1399622136.

The previous prime is 2131242989. The next prime is 2131243019. The reversal of 2131242999 is 9992421312.

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

It is not a de Polignac number, because 2131242999 - 2¹⁵ = 2131210231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2131242999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131242929) 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, 5301399 + ... + 5301800.

It is an arithmetic number, because the mean of its divisors is an integer number (360508800).

Almost surely, 2^2131242999 is an apocalyptic number.

2131242999 is a deficient number, since it is larger than the sum of its proper divisors (752827401).

2131242999 is a wasteful number, since it uses less digits than its factorization.

2131242999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10603269.

The product of its digits is 69984, while the sum is 42.

The square root of 2131242999 is about 46165.3874564050. The cubic root of 2131242999 is about 1286.8985846532.

The spelling of 2131242999 in words is "two billion, one hundred thirty-one million, two hundred forty-two thousand, nine hundred ninety-nine".