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153131003121 = 351043667707
BaseRepresentation
bin1000111010011101010…
…0011010110011110001
3112122020221222221201010
42032213110122303301
510002103014044441
6154203012501133
714030505023145
oct2164724326361
9478227887633
10153131003121
1159a40506138
122581731a7a9
1311595140c25
1475a9539225
153eb38ee116
hex23a751acf1

153131003121 has 4 divisors (see below), whose sum is σ = 204174670832. Its totient is φ = 102087335412.

The previous prime is 153131003119. The next prime is 153131003161. The reversal of 153131003121 is 121300131351.

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 not a de Polignac number, because 153131003121 - 21 = 153131003119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153131003161) 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, 25521833851 + ... + 25521833856.

It is an arithmetic number, because the mean of its divisors is an integer number (51043667708).

Almost surely, 2153131003121 is an apocalyptic number.

It is an amenable number.

153131003121 is a deficient number, since it is larger than the sum of its proper divisors (51043667711).

153131003121 is an equidigital number, since it uses as much as digits as its factorization.

153131003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51043667710.

The product of its (nonzero) digits is 270, while the sum is 21.

Adding to 153131003121 its reverse (121300131351), we get a palindrome (274431134472).

The spelling of 153131003121 in words is "one hundred fifty-three billion, one hundred thirty-one million, three thousand, one hundred twenty-one".

Divisors: 1 3 51043667707 153131003121