102000020011231 has 4 divisors (see below), whose sum is σ = 102001071622312. Its totient is φ = 101998968400152.

The previous prime is 102000020011187. The next prime is 102000020011243. The reversal of 102000020011231 is 132110020000201.

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

It is a cyclic number.

It is not a de Polignac number, because 102000020011231 - 2¹⁵ = 102000019978463 is a prime.

It is a super-2 number, since 2×102000020011231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102000020011271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525660036 + ... + 525854041.

It is an arithmetic number, because the mean of its divisors is an integer number (25500267905578).

Almost surely, 2^{102000020011231} is an apocalyptic number.

102000020011231 is a deficient number, since it is larger than the sum of its proper divisors (1051611081).

102000020011231 is an equidigital number, since it uses as much as digits as its factorization.

102000020011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051611080.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102000020011231 its reverse (132110020000201), we get a palindrome (234110040011432).

The spelling of 102000020011231 in words is "one hundred two trillion, twenty million, eleven thousand, two hundred thirty-one".