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23131013312310 = 23523591974336661
BaseRepresentation
bin1010100001001100110111…
…10101001110111100110110
310000220022012002101121220020
411100212123311032330312
511012434303401443220
6121110124003350010
74605106034040441
oct520463365167466
9100808162347806
1023131013312310
117408897a99432
122716b41682306
13cba325906a37
1459d793034658
152a1a5639e040
hex15099bd4ef36

23131013312310 has 256 divisors, whose sum is σ = 59354621061120. Its totient is φ = 5756449628160.

The previous prime is 23131013312233. The next prime is 23131013312327. The reversal of 23131013312310 is 1321331013132.

It is a super-2 number, since 2×231310133123102 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3472600380 + ... + 3472607040.

It is an arithmetic number, because the mean of its divisors is an integer number (231853988520).

Almost surely, 223131013312310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23131013312310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29677310530560).

23131013312310 is an abundant number, since it is smaller than the sum of its proper divisors (36223607748810).

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

23131013312310 is a wasteful number, since it uses less digits than its factorization.

23131013312310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7383.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 23131013312310 its reverse (1321331013132), we get a palindrome (24452344325442).

The spelling of 23131013312310 in words is "twenty-three trillion, one hundred thirty-one billion, thirteen million, three hundred twelve thousand, three hundred ten".