102303021021 has 8 divisors (see below), whose sum is σ = 136416805824. Its totient is φ = 68195625120.

The previous prime is 102303021017. The next prime is 102303021047. The reversal of 102303021021 is 120120303201.

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

It is not a de Polignac number, because 102303021021 - 2² = 102303021017 is a prime.

It is a super-2 number, since 2×102303021021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102303021521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1559736 + ... + 1624001.

It is an arithmetic number, because the mean of its divisors is an integer number (17052100728).

Almost surely, 2^102303021021 is an apocalyptic number.

It is an amenable number.

102303021021 is a deficient number, since it is larger than the sum of its proper divisors (34113784803).

102303021021 is a wasteful number, since it uses less digits than its factorization.

102303021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194451.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 102303021021 its reverse (120120303201), we get a palindrome (222423324222).

The spelling of 102303021021 in words is "one hundred two billion, three hundred three million, twenty-one thousand, twenty-one".