102121220302320 has 40 divisors (see below), whose sum is σ = 316575782937936. Its totient is φ = 27232325413888.

The previous prime is 102121220302319. The next prime is 102121220302337. The reversal of 102121220302320 is 23203022121201.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent 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, 212752542057 + ... + 212752542536.

Almost surely, 2^{102121220302320} is an apocalyptic number.

102121220302320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102121220302320 is an abundant number, since it is smaller than the sum of its proper divisors (214454562635616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102121220302320 is a wasteful number, since it uses less digits than its factorization.

102121220302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425505084609 (or 425505084603 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 102121220302320 its reverse (23203022121201), we get a palindrome (125324242423521).

The spelling of 102121220302320 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twenty million, three hundred two thousand, three hundred twenty".