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23120333131 = 725150326161
BaseRepresentation
bin10101100010000101…
…000100100101001011
32012200021222121121111
4111202011010211023
5334322301130011
614342112551151
71445641406020
oct254205044513
965607877544
1023120333131
119894909535
124592b524b7
132245ca18bc
141194893547
15904b7e121
hex56214494b

23120333131 has 16 divisors (see below), whose sum is σ = 26582266368. Its totient is φ = 19698480000.

The previous prime is 23120333123. The next prime is 23120333147. The reversal of 23120333131 is 13133302132.

It is not a de Polignac number, because 23120333131 - 23 = 23120333123 is a prime.

It is a super-2 number, since 2×231203331312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23120333101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 870691 + ... + 896851.

It is an arithmetic number, because the mean of its divisors is an integer number (1661391648).

Almost surely, 223120333131 is an apocalyptic number.

23120333131 is a deficient number, since it is larger than the sum of its proper divisors (3461933237).

23120333131 is a wasteful number, since it uses less digits than its factorization.

23120333131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26922.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23120333131 its reverse (13133302132), we get a palindrome (36253635263).

The spelling of 23120333131 in words is "twenty-three billion, one hundred twenty million, three hundred thirty-three thousand, one hundred thirty-one".

Divisors: 1 7 251 503 1757 3521 26161 126253 183127 883771 6566411 13158983 45964877 92112881 3302904733 23120333131