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231301310120 = 23537672332607
BaseRepresentation
bin1101011101101010100…
…0011110011010101000
3211010000210012222202122
43113122220132122220
512242201113410440
6254131445450412
722465601460626
oct3273250363250
9733023188678
10231301310120
118a104617841
12389b2410a08
1318a7218a65a
14b2a32ac516
15603b44b7b5
hex35daa1e6a8

231301310120 has 64 divisors (see below), whose sum is σ = 542471316480. Its totient is φ = 88676349696.

The previous prime is 231301310069. The next prime is 231301310131. The reversal of 231301310120 is 21013103132.

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, 1067144 + ... + 1265463.

It is an arithmetic number, because the mean of its divisors is an integer number (8476114320).

Almost surely, 2231301310120 is an apocalyptic number.

231301310120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231301310120 is an abundant number, since it is smaller than the sum of its proper divisors (311170006360).

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

231301310120 is a wasteful number, since it uses less digits than its factorization.

231301310120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332722 (or 2332718 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 231301310120 its reverse (21013103132), we get a palindrome (252314413252).

The spelling of 231301310120 in words is "two hundred thirty-one billion, three hundred one million, three hundred ten thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 37 40 67 74 134 148 185 268 296 335 370 536 670 740 1340 1480 2479 2680 4958 9916 12395 19832 24790 49580 99160 2332607 4665214 9330428 11663035 18660856 23326070 46652140 86306459 93304280 156284669 172612918 312569338 345225836 431532295 625138676 690451672 781423345 863064590 1250277352 1562846690 1726129180 3125693380 3452258360 5782532753 6251386760 11565065506 23130131012 28912663765 46260262024 57825327530 115650655060 231301310120