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2012102210031 = 3670700736677
BaseRepresentation
bin11101010001111010101…
…000110011000111101111
321010100120212021211010020
4131101322220303013233
5230431241131210111
64140202541213223
7265240524410154
oct35217250630757
97110525254106
102012102210031
11706367273361
12285b60b61213
131179819345b4
146d559cb622b
15375156dc906
hex1d47aa331ef

2012102210031 has 4 divisors (see below), whose sum is σ = 2682802946712. Its totient is φ = 1341401473352.

The previous prime is 2012102210011. The next prime is 2012102210077. The reversal of 2012102210031 is 1300122012102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2012102210031 - 26 = 2012102209967 is a prime.

It is a super-2 number, since 2×20121022100312 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012102210011) 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, 335350368336 + ... + 335350368341.

It is an arithmetic number, because the mean of its divisors is an integer number (670700736678).

Almost surely, 22012102210031 is an apocalyptic number.

2012102210031 is a deficient number, since it is larger than the sum of its proper divisors (670700736681).

2012102210031 is an equidigital number, since it uses as much as digits as its factorization.

2012102210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670700736680.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2012102210031 its reverse (1300122012102), we get a palindrome (3312224222133).

The spelling of 2012102210031 in words is "two trillion, twelve billion, one hundred two million, two hundred ten thousand, thirty-one".

Divisors: 1 3 670700736677 2012102210031