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231031113302 = 21110501414241
BaseRepresentation
bin1101011100101010000…
…1110000011001010110
3211002022221210120102002
43113022201300121112
512241122431111202
6254044554315302
722456111030043
oct3271241603126
9732287716362
10231031113302
1189a86049990
1238937a28b32
1318a2b1c6092
14b2794561ca
156022878302
hex35ca870656

231031113302 has 8 divisors (see below), whose sum is σ = 378050912712. Its totient is φ = 105014142400.

The previous prime is 231031113293. The next prime is 231031113307. The reversal of 231031113302 is 203311130132.

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

It is a super-2 number, since 2×2310311133022 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231031113307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5250707099 + ... + 5250707142.

It is an arithmetic number, because the mean of its divisors is an integer number (47256364089).

Almost surely, 2231031113302 is an apocalyptic number.

231031113302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231031113302 is a deficient number, since it is larger than the sum of its proper divisors (147019799410).

231031113302 is a wasteful number, since it uses less digits than its factorization.

231031113302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501414254.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231031113302 its reverse (203311130132), we get a palindrome (434342243434).

The spelling of 231031113302 in words is "two hundred thirty-one billion, thirty-one million, one hundred thirteen thousand, three hundred two".

Divisors: 1 2 11 22 10501414241 21002828482 115515556651 231031113302