102120102030 has 64 divisors (see below), whose sum is σ = 247508712000. Its totient is φ = 26963435520.

The previous prime is 102120102017. The next prime is 102120102037. The reversal of 102120102030 is 30201021201.

It is a super-2 number, since 2×102120102030² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102120101997 and 102120102015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120102037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5055150 + ... + 5075310.

It is an arithmetic number, because the mean of its divisors is an integer number (3867323625).

Almost surely, 2^102120102030 is an apocalyptic number.

102120102030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102120102030 is an abundant number, since it is smaller than the sum of its proper divisors (145388609970).

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

102120102030 is a wasteful number, since it uses less digits than its factorization.

102120102030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21829.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 102120102030 its reverse (30201021201), we get a palindrome (132321123231).

The spelling of 102120102030 in words is "one hundred two billion, one hundred twenty million, one hundred two thousand, thirty".