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31100132001 = 310366710667
BaseRepresentation
bin11100111101101101…
…100101101010100001
32222021102101101202210
4130331231211222201
51002143113211001
622142011432333
72150455521531
oct347555455241
988242341683
1031100132001
111220a239534
12603b4556a9
132c18290b93
1417105bd4c1
15c204d8dd6
hex73db65aa1

31100132001 has 4 divisors (see below), whose sum is σ = 41466842672. Its totient is φ = 20733421332.

The previous prime is 31100131963. The next prime is 31100132029. The reversal of 31100132001 is 10023100113.

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 31100132001 - 213 = 31100123809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31100130001) 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, 5183355331 + ... + 5183355336.

It is an arithmetic number, because the mean of its divisors is an integer number (10366710668).

Almost surely, 231100132001 is an apocalyptic number.

It is an amenable number.

31100132001 is a deficient number, since it is larger than the sum of its proper divisors (10366710671).

31100132001 is a wasteful number, since it uses less digits than its factorization.

31100132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10366710670.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31100132001 its reverse (10023100113), we get a palindrome (41123232114).

The spelling of 31100132001 in words is "thirty-one billion, one hundred million, one hundred thirty-two thousand, one".

Divisors: 1 3 10366710667 31100132001