102001023231133 has 4 divisors (see below), whose sum is σ = 109847255787388. Its totient is φ = 94154790674880.

The previous prime is 102001023231083. The next prime is 102001023231137. The reversal of 102001023231133 is 331132320100201.

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 30896277467364 + 71104745763769 = 5558442^2 + 8432363^2 .

It is not a de Polignac number, because 102001023231133 - 2⁹ = 102001023230621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001023231137) 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, 3923116278108 + ... + 3923116278133.

It is an arithmetic number, because the mean of its divisors is an integer number (27461813946847).

Almost surely, 2^{102001023231133} is an apocalyptic number.

102001023231133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

102001023231133 is a deficient number, since it is larger than the sum of its proper divisors (7846232556255).

102001023231133 is an equidigital number, since it uses as much as digits as its factorization.

102001023231133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7846232556254.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 102001023231133 its reverse (331132320100201), we get a palindrome (433133343331334).

The spelling of 102001023231133 in words is "one hundred two trillion, one billion, twenty-three million, two hundred thirty-one thousand, one hundred thirty-three".