1000231011421 has 4 divisors (see below), whose sum is σ = 1013932806172. Its totient is φ = 986529216672.

The previous prime is 1000231011401. The next prime is 1000231011467. The reversal of 1000231011421 is 1241101320001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 468046171321 + 532184840100 = 684139^2 + 729510^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000231011421 - 2¹¹ = 1000231009373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000231011395 and 1000231011404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000231011401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6850897266 + ... + 6850897411.

It is an arithmetic number, because the mean of its divisors is an integer number (253483201543).

Almost surely, 2^{1000231011421} is an apocalyptic number.

It is an amenable number.

1000231011421 is a deficient number, since it is larger than the sum of its proper divisors (13701794751).

1000231011421 is an equidigital number, since it uses as much as digits as its factorization.

1000231011421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13701794750.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1000231011421 its reverse (1241101320001), we get a palindrome (2241332331422).

The spelling of 1000231011421 in words is "one trillion, two hundred thirty-one million, eleven thousand, four hundred twenty-one".