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111320230031 = 3132557139091
BaseRepresentation
bin110011110101100110…
…0111110100010001111
3101122100002122121111122
41213223030332202033
53310440434330111
6123050110511155
711020422225413
oct1475314764217
9348302577448
10111320230031
114323540550a
12196a8b054bb
13a660b98bca
14556068cd43
152d67e81cdb
hex19eb33e88f

111320230031 has 8 divisors (see below), whose sum is σ = 111720363504. Its totient is φ = 110920380480.

The previous prime is 111320230013. The next prime is 111320230081. The reversal of 111320230031 is 130032023111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-111320230031 is a prime.

It is a super-2 number, since 2×1113202300312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111320229991 and 111320230009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111320230081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730796 + ... + 869886.

It is an arithmetic number, because the mean of its divisors is an integer number (13965045438).

Almost surely, 2111320230031 is an apocalyptic number.

111320230031 is a deficient number, since it is larger than the sum of its proper divisors (400133473).

111320230031 is a wasteful number, since it uses less digits than its factorization.

111320230031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141961.

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

Adding to 111320230031 its reverse (130032023111), we get a palindrome (241352253142).

The spelling of 111320230031 in words is "one hundred eleven billion, three hundred twenty million, two hundred thirty thousand, thirty-one".

Divisors: 1 313 2557 139091 800341 43535483 355655687 111320230031