102110211940 has 48 divisors (see below), whose sum is σ = 234012804480. Its totient is φ = 37117082880.

The previous prime is 102110211937. The next prime is 102110211941. The reversal of 102110211940 is 49112011201.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (102110211941) 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, 511321 + ... + 682399.

It is an arithmetic number, because the mean of its divisors is an integer number (4875266760).

Almost surely, 2^102110211940 is an apocalyptic number.

102110211940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102110211940 is an abundant number, since it is smaller than the sum of its proper divisors (131902592540).

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

102110211940 is a wasteful number, since it uses less digits than its factorization.

102110211940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173812 (or 173810 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 102110211940 in words is "one hundred two billion, one hundred ten million, two hundred eleven thousand, nine hundred forty".