102004140232021 has 4 divisors (see below), whose sum is σ = 102004174179532. Its totient is φ = 102004106284512.

The previous prime is 102004140231991. The next prime is 102004140232051. The reversal of 102004140232021 is 120232041400201.

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

It is an interprime number because it is at equal distance from previous prime (102004140231991) and next prime (102004140232051).

It can be written as a sum of positive squares in 2 ways, for example, as 34972439062500 + 67031701169521 = 5913750^2 + 8187289^2 .

It is a cyclic number.

It is not a de Polignac number, because 102004140232021 - 2¹⁵ = 102004140199253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102004140231983 and 102004140232001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102004140232051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11976126 + ... + 18639631.

It is an arithmetic number, because the mean of its divisors is an integer number (25501043544883).

Almost surely, 2^{102004140232021} is an apocalyptic number.

It is an amenable number.

102004140232021 is a deficient number, since it is larger than the sum of its proper divisors (33947511).

102004140232021 is an equidigital number, since it uses as much as digits as its factorization.

102004140232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33947510.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 102004140232021 its reverse (120232041400201), we get a palindrome (222236181632222).

The spelling of 102004140232021 in words is "one hundred two trillion, four billion, one hundred forty million, two hundred thirty-two thousand, twenty-one".