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123130131323 = 614273472391
BaseRepresentation
bin111001010101100100…
…0001011001101111011
3102202211011001202110012
41302223020023031323
54004132303200243
6132322030012135
711616164563463
oct1625310131573
9382734052405
10123130131323
1148245827111
121ba4404704b
13b7c3832094
145d60d44ba3
153309ba1d18
hex1cab20b37b

123130131323 has 8 divisors (see below), whose sum is σ = 125178211296. Its totient is φ = 121083004800.

The previous prime is 123130131307. The next prime is 123130131343. The reversal of 123130131323 is 323131031321.

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

It is a cyclic number.

It is not a de Polignac number, because 123130131323 - 24 = 123130131307 is a prime.

It is a super-2 number, since 2×1231301313232 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123130131343) 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, 24458 + ... + 496848.

It is an arithmetic number, because the mean of its divisors is an integer number (15647276412).

Almost surely, 2123130131323 is an apocalyptic number.

123130131323 is a deficient number, since it is larger than the sum of its proper divisors (2048079973).

123130131323 is an equidigital number, since it uses as much as digits as its factorization.

123130131323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476725.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 123130131323 its reverse (323131031321), we get a palindrome (446261162644).

The spelling of 123130131323 in words is "one hundred twenty-three billion, one hundred thirty million, one hundred thirty-one thousand, three hundred twenty-three".

Divisors: 1 61 4273 260653 472391 28815851 2018526743 123130131323