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1231230112232 = 234311173204259
BaseRepresentation
bin10001111010101011000…
…010001001000111101000
311100201000112200012002212
4101322223002021013220
5130133024402042412
62341341434144252
7154645013163641
oct21725302110750
94321015605085
101231230112232
114351863336aa
1217a754582088
138c148788363
14438400a06c8
15220617ec222
hex11eab0891e8

1231230112232 has 32 divisors (see below), whose sum is σ = 2364359368800. Its totient is φ = 600759923904.

The previous prime is 1231230112219. The next prime is 1231230112247. The reversal of 1231230112232 is 2322110321321.

It is a junction number, because it is equal to n+sod(n) for n = 1231230112198 and 1231230112207.

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, 1217882 + ... + 1986377.

It is an arithmetic number, because the mean of its divisors is an integer number (73886230275).

Almost surely, 21231230112232 is an apocalyptic number.

It is an amenable number.

1231230112232 is a deficient number, since it is larger than the sum of its proper divisors (1133129256568).

1231230112232 is a wasteful number, since it uses less digits than its factorization.

1231230112232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205425 (or 3205421 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1231230112232 its reverse (2322110321321), we get a palindrome (3553340433553).

The spelling of 1231230112232 in words is "one trillion, two hundred thirty-one billion, two hundred thirty million, one hundred twelve thousand, two hundred thirty-two".

Divisors: 1 2 4 8 43 86 172 344 1117 2234 4468 8936 48031 96062 192124 384248 3204259 6408518 12817036 25634072 137783137 275566274 551132548 1102265096 3579157303 7158314606 14316629212 28633258424 153903764029 307807528058 615615056116 1231230112232