1000112131421 has 8 divisors (see below), whose sum is σ = 1077051849720. Its totient is φ = 923173558272.

The previous prime is 1000112131399. The next prime is 1000112131463. The reversal of 1000112131421 is 1241312110001.

It can be written as a sum of positive squares in 4 ways, for example, as 86441880100 + 913670251321 = 294010^2 + 955861^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1000112131421 - 2⁶ = 1000112131357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000112131421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000112131321) 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, 2621525 + ... + 2978693.

It is an arithmetic number, because the mean of its divisors is an integer number (134631481215).

Almost surely, 2^{1000112131421} is an apocalyptic number.

It is an amenable number.

1000112131421 is a deficient number, since it is larger than the sum of its proper divisors (76939718299).

1000112131421 is a wasteful number, since it uses less digits than its factorization.

1000112131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572575.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1000112131421 its reverse (1241312110001), we get a palindrome (2241424241422).

The spelling of 1000112131421 in words is "one trillion, one hundred twelve million, one hundred thirty-one thousand, four hundred twenty-one".