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203131112123230 = 2520313111212323
BaseRepresentation
bin101110001011111100100101…
…110001111110101101011110
3222122020010220110111021220121
4232023330211301332231132
5203111100004200420410
62000005051124505154
760533511215244004
oct5613744561765536
9878203813437817
10203131112123230
11597a646a1a3865
121a94820654b1ba
1389462491ca395
14382385399ca74
151873d8e0c49da
hexb8bf25c7eb5e

203131112123230 has 8 divisors (see below), whose sum is σ = 365636001821832. Its totient is φ = 81252444849288.

The previous prime is 203131112123209. The next prime is 203131112123257. The reversal of 203131112123230 is 32321211131302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 203131112123195 and 203131112123204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10156555606152 + ... + 10156555606171.

It is an arithmetic number, because the mean of its divisors is an integer number (45704500227729).

Almost surely, 2203131112123230 is an apocalyptic number.

203131112123230 is a deficient number, since it is larger than the sum of its proper divisors (162504889698602).

203131112123230 is a wasteful number, since it uses less digits than its factorization.

203131112123230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20313111212330.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 203131112123230 its reverse (32321211131302), we get a palindrome (235452323254532).

The spelling of 203131112123230 in words is "two hundred three trillion, one hundred thirty-one billion, one hundred twelve million, one hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 20313111212323 40626222424646 101565556061615 203131112123230