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10121331023 = 96971043759
BaseRepresentation
bin10010110110100011…
…10100000101001111
3222010101001212222222
421123101310011033
5131212030043043
64352155125555
7505546615466
oct113321640517
928111055888
1010121331023
114324255891
121b657438bb
13c53b8c18b
146c03079dd
153e3877d68
hex25b47414f

10121331023 has 4 divisors (see below), whose sum is σ = 10122384480. Its totient is φ = 10120277568.

The previous prime is 10121330993. The next prime is 10121331029. The reversal of 10121331023 is 32013312101.

10121331023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32013312101 = 179178845319.

It is a cyclic number.

It is not a de Polignac number, because 10121331023 - 26 = 10121330959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121330992 and 10121331010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121331029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512183 + ... + 531576.

It is an arithmetic number, because the mean of its divisors is an integer number (2530596120).

Almost surely, 210121331023 is an apocalyptic number.

10121331023 is a deficient number, since it is larger than the sum of its proper divisors (1053457).

10121331023 is an equidigital number, since it uses as much as digits as its factorization.

10121331023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053456.

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

Adding to 10121331023 its reverse (32013312101), we get a palindrome (42134643124).

The spelling of 10121331023 in words is "ten billion, one hundred twenty-one million, three hundred thirty-one thousand, twenty-three".

Divisors: 1 9697 1043759 10121331023