102311004020 has 24 divisors (see below), whose sum is σ = 215816584704. Its totient is φ = 40740882336.

The previous prime is 102311003989. The next prime is 102311004073. The reversal of 102311004020 is 20400113201.

It is a junction number, because it is equal to n+sod(n) for n = 102311003986 and 102311004004.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11465384 + ... + 11474303.

It is an arithmetic number, because the mean of its divisors is an integer number (8992357696).

Almost surely, 2^102311004020 is an apocalyptic number.

102311004020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102311004020 is an abundant number, since it is smaller than the sum of its proper divisors (113505580684).

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

102311004020 is a wasteful number, since it uses less digits than its factorization.

102311004020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22939919 (or 22939917 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 102311004020 its reverse (20400113201), we get a palindrome (122711117221).

The spelling of 102311004020 in words is "one hundred two billion, three hundred eleven million, four thousand, twenty".