1231014021001 has 2 divisors, whose sum is σ = 1231014021002. Its totient is φ = 1231014021000.

The previous prime is 1231014020993. The next prime is 1231014021019. The reversal of 1231014021001 is 1001204101321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 755708569225 + 475305451776 = 869315^2 + 689424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231014021001 - 2³ = 1231014020993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231014024001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615507010500 + 615507010501.

It is an arithmetic number, because the mean of its divisors is an integer number (615507010501).

Almost surely, 2^{1231014021001} is an apocalyptic number.

It is an amenable number.

1231014021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231014021001 is an equidigital number, since it uses as much as digits as its factorization.

1231014021001 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1231014021001 its reverse (1001204101321), we get a palindrome (2232218122322).

The spelling of 1231014021001 in words is "one trillion, two hundred thirty-one billion, fourteen million, twenty-one thousand, one".