102132303011021 has 4 divisors (see below), whose sum is σ = 103806603060444. Its totient is φ = 100458002961600.

The previous prime is 102132303011009. The next prime is 102132303011023. The reversal of 102132303011021 is 120110303231201.

It is a happy number.

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 25988441668996 + 76143861342025 = 5097886^2 + 8726045^2 .

It is a cyclic number.

It is not a de Polignac number, because 102132303011021 - 2¹⁸ = 102132302748877 is a prime.

It is a super-3 number, since 3×102132303011021³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102132303010984 and 102132303011002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102132303011023) 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, 837150024620 + ... + 837150024741.

It is an arithmetic number, because the mean of its divisors is an integer number (25951650765111).

Almost surely, 2^{102132303011021} is an apocalyptic number.

It is an amenable number.

102132303011021 is a deficient number, since it is larger than the sum of its proper divisors (1674300049423).

102132303011021 is an equidigital number, since it uses as much as digits as its factorization.

102132303011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674300049422.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 102132303011021 its reverse (120110303231201), we get a palindrome (222242606242222).

The spelling of 102132303011021 in words is "one hundred two trillion, one hundred thirty-two billion, three hundred three million, eleven thousand, twenty-one".