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103131201013 = 158365149211
BaseRepresentation
bin110000000001100011…
…0010011110111110101
3100212012101112211112121
41200003012103313311
53142203041413023
6115213335315541
710310454513301
oct1400306236765
9325171484477
10103131201013
113a812968835
1217ba251bbb1
1399574402c9
144dc4c5ad01
152a39097d5d
hex1803193df5

103131201013 has 4 divisors (see below), whose sum is σ = 103196351808. Its totient is φ = 103066050220.

The previous prime is 103131201011. The next prime is 103131201037. The reversal of 103131201013 is 310102131301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103131201013 - 21 = 103131201011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103131201011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32573023 + ... + 32576188.

It is an arithmetic number, because the mean of its divisors is an integer number (25799087952).

Almost surely, 2103131201013 is an apocalyptic number.

It is an amenable number.

103131201013 is a deficient number, since it is larger than the sum of its proper divisors (65150795).

103131201013 is an equidigital number, since it uses as much as digits as its factorization.

103131201013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65150794.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 103131201013 its reverse (310102131301), we get a palindrome (413233332314).

The spelling of 103131201013 in words is "one hundred three billion, one hundred thirty-one million, two hundred one thousand, thirteen".

Divisors: 1 1583 65149211 103131201013