2131724968042 has 8 divisors (see below), whose sum is σ = 3197593887300. Its totient is φ = 1065860338944.

The previous prime is 2131724968027. The next prime is 2131724968057. The reversal of 2131724968042 is 2408694271312.

It is an interprime number because it is at equal distance from previous prime (2131724968027) and next prime (2131724968057).

It can be written as a sum of positive squares in 2 ways, for example, as 1939031185081 + 192693782961 = 1392491^2 + 438969^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 882184 + ... + 2245372.

Almost surely, 2^{2131724968042} is an apocalyptic number.

2131724968042 is a deficient number, since it is larger than the sum of its proper divisors (1065868919258).

2131724968042 is a wasteful number, since it uses less digits than its factorization.

2131724968042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145080.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 2131724968042 in words is "two trillion, one hundred thirty-one billion, seven hundred twenty-four million, nine hundred sixty-eight thousand, forty-two".