1231232021093 has 2 divisors, whose sum is σ = 1231232021094. Its totient is φ = 1231232021092.

The previous prime is 1231232021053. The next prime is 1231232021113. The reversal of 1231232021093 is 3901202321321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 656232846724 + 574999174369 = 810082^2 + 758287^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231232021093 - 2¹⁶ = 1231231955557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231232021053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615616010546 + 615616010547.

It is an arithmetic number, because the mean of its divisors is an integer number (615616010547).

Almost surely, 2^{1231232021093} is an apocalyptic number.

It is an amenable number.

1231232021093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231232021093 is an equidigital number, since it uses as much as digits as its factorization.

1231232021093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 1231232021093 in words is "one trillion, two hundred thirty-one billion, two hundred thirty-two million, twenty-one thousand, ninety-three".