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101232311020 = 22531163277921
BaseRepresentation
bin101111001000111101…
…0100111101011101100
3100200022001110020011121
41132101322213223230
53124310432423040
6114301103430324
710212426306001
oct1362172475354
9320261406147
10101232311020
1139a29000665
12177525b53a4
139713c07a69
144c849a18a8
152977508c4a
hex1791ea7aec

101232311020 has 24 divisors (see below), whose sum is σ = 219445527168. Its totient is φ = 39186700800.

The previous prime is 101232310961. The next prime is 101232311039. The reversal of 101232311020 is 20113232101.

It is a junction number, because it is equal to n+sod(n) for n = 101232310985 and 101232311003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81638341 + ... + 81639580.

It is an arithmetic number, because the mean of its divisors is an integer number (9143563632).

Almost surely, 2101232311020 is an apocalyptic number.

101232311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101232311020 is an abundant number, since it is smaller than the sum of its proper divisors (118213216148).

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

101232311020 is a wasteful number, since it uses less digits than its factorization.

101232311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163277961 (or 163277959 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 101232311020 its reverse (20113232101), we get a palindrome (121345543121).

The spelling of 101232311020 in words is "one hundred one billion, two hundred thirty-two million, three hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 163277921 326555842 653111684 816389605 1632779210 3265558420 5061615551 10123231102 20246462204 25308077755 50616155510 101232311020