102119820 has 48 divisors (see below), whose sum is σ = 311931648. Its totient is φ = 24756160.

The previous prime is 102119783. The next prime is 102119827. The reversal of 102119820 is 28911201.

It is not an unprimeable number, because it can be changed into a prime (102119827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76704 + ... + 78023.

It is an arithmetic number, because the mean of its divisors is an integer number (6498576).

Almost surely, 2^102119820 is an apocalyptic number.

102119820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102119820 is an abundant number, since it is smaller than the sum of its proper divisors (209811828).

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

102119820 is a wasteful number, since it uses less digits than its factorization.

102119820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154750 (or 154748 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 102119820 is about 10105.4351712333. The cubic root of 102119820 is about 467.4157549780.

The spelling of 102119820 in words is "one hundred two million, one hundred nineteen thousand, eight hundred twenty".