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1232103231020 = 22564795216633
BaseRepresentation
bin10001111011011111000…
…100110100111000101100
311100210021101121012220202
4101323133010310320230
5130141321411343040
62342004224133032
7155005444443524
oct21733704647054
94323241535822
101232103231020
11435594175782
1217a958a67178
138c25762c4ac
14438c4020684
15220b32b9015
hex11edf134e2c

1232103231020 has 24 divisors (see below), whose sum is σ = 2591415910944. Its totient is φ = 492079554176.

The previous prime is 1232103231001. The next prime is 1232103231091. The reversal of 1232103231020 is 201323012321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1232103230983 and 1232103231001.

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, 47595377 + ... + 47621256.

It is an arithmetic number, because the mean of its divisors is an integer number (107975662956).

Almost surely, 21232103231020 is an apocalyptic number.

1232103231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232103231020 is an abundant number, since it is smaller than the sum of its proper divisors (1359312679924).

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

1232103231020 is a wasteful number, since it uses less digits than its factorization.

1232103231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95217289 (or 95217287 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1232103231020 its reverse (201323012321), we get a palindrome (1433426243341).

The spelling of 1232103231020 in words is "one trillion, two hundred thirty-two billion, one hundred three million, two hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 647 1294 2588 3235 6470 12940 95216633 190433266 380866532 476083165 952166330 1904332660 61605161551 123210323102 246420646204 308025807755 616051615510 1232103231020