102021244242305 has 8 divisors (see below), whose sum is σ = 122553956363112. Its totient is φ = 81531353212288.

The previous prime is 102021244242263. The next prime is 102021244242347. The reversal of 102021244242305 is 503242442120201.

It is an interprime number because it is at equal distance from previous prime (102021244242263) and next prime (102021244242347).

It can be written as a sum of positive squares in 4 ways, for example, as 2640602250049 + 99380641992256 = 1624993^2 + 9968984^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102021244242305 - 2²² = 102021240048001 is a prime.

It is a super-2 number, since 2×102021244242305² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10705267454 + ... + 10705276983.

It is an arithmetic number, because the mean of its divisors is an integer number (15319244545389).

Almost surely, 2^{102021244242305} is an apocalyptic number.

It is an amenable number.

102021244242305 is a deficient number, since it is larger than the sum of its proper divisors (20532712120807).

102021244242305 is an equidigital number, since it uses as much as digits as its factorization.

102021244242305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21410545395.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 102021244242305 its reverse (503242442120201), we get a palindrome (605263686362506).

The spelling of 102021244242305 in words is "one hundred two trillion, twenty-one billion, two hundred forty-four million, two hundred forty-two thousand, three hundred five".