102101320420 has 48 divisors (see below), whose sum is σ = 234284254848. Its totient is φ = 37067528960.

The previous prime is 102101320403. The next prime is 102101320427. The reversal of 102101320420 is 24023101201.

It is a junction number, because it is equal to n+sod(n) for n = 102101320394 and 102101320403.

It is not an unprimeable number, because it can be changed into a prime (102101320427) 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 15 ways as a sum of consecutive naturals, for example, 240352 + ... + 511831.

It is an arithmetic number, because the mean of its divisors is an integer number (4880921976).

Almost surely, 2^102101320420 is an apocalyptic number.

102101320420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102101320420 is an abundant number, since it is smaller than the sum of its proper divisors (132182934428).

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

102101320420 is a wasteful number, since it uses less digits than its factorization.

102101320420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752820 (or 752818 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102101320420 its reverse (24023101201), we get a palindrome (126124421621).

The spelling of 102101320420 in words is "one hundred two billion, one hundred one million, three hundred twenty thousand, four hundred twenty".