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31132012101 = 340925372463
BaseRepresentation
bin11100111111100111…
…001100111001000101
32222100122101002001020
4130333213030321011
51002224243341401
622145111021353
72151323510451
oct347747147105
988318332036
1031132012101
1112226233523
12604a06a859
132c21a73848
14171491b661
15c231d4d36
hex73f9cce45

31132012101 has 8 divisors (see below), whose sum is σ = 41610840960. Its totient is φ = 20703928992.

The previous prime is 31132012049. The next prime is 31132012117. The reversal of 31132012101 is 10121023113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-31132012101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31132012801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12685005 + ... + 12687458.

It is an arithmetic number, because the mean of its divisors is an integer number (5201355120).

Almost surely, 231132012101 is an apocalyptic number.

It is an amenable number.

31132012101 is a deficient number, since it is larger than the sum of its proper divisors (10478828859).

31132012101 is a wasteful number, since it uses less digits than its factorization.

31132012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25372875.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31132012101 its reverse (10121023113), we get a palindrome (41253035214).

The spelling of 31132012101 in words is "thirty-one billion, one hundred thirty-two million, twelve thousand, one hundred one".

Divisors: 1 3 409 1227 25372463 76117389 10377337367 31132012101