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1231355241030 = 235181226768921
BaseRepresentation
bin10001111010110010011…
…111011110001001000110
311100201100021010101112210
4101322302133132021012
5130133303420203110
62341402104124250
7154651062565635
oct21726237361106
94321307111483
101231355241030
1143523aa28832
1217a78a466686
138c168689875
144385295351c
152206c7b7520
hex11eb27de246

1231355241030 has 32 divisors (see below), whose sum is σ = 2971579953888. Its totient is φ = 326547244800.

The previous prime is 1231355240987. The next prime is 1231355241047. The reversal of 1231355241030 is 301425531321.

It is a super-2 number, since 2×12313552410302 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113379031 + ... + 113389890.

It is an arithmetic number, because the mean of its divisors is an integer number (92861873559).

Almost surely, 21231355241030 is an apocalyptic number.

1231355241030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231355241030 is an abundant number, since it is smaller than the sum of its proper divisors (1740224712858).

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

1231355241030 is a wasteful number, since it uses less digits than its factorization.

1231355241030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226769112.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 1231355241030 in words is "one trillion, two hundred thirty-one billion, three hundred fifty-five million, two hundred forty-one thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 181 362 543 905 1086 1810 2715 5430 226768921 453537842 680306763 1133844605 1360613526 2267689210 3401533815 6803067630 41045174701 82090349402 123135524103 205225873505 246271048206 410451747010 615677620515 1231355241030