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1012110040091 = 5032012147197
BaseRepresentation
bin11101011101001100111…
…01011001110000011011
310120202102200121012110102
432232212131121300123
5113040300132240331
62052542410410015
7133060013252243
oct16564635316033
93522380535412
101012110040091
11360262806297
121441a173090b
137459817aa37
1436db490ab23
151b4d99c14cb
hexeba6759c1b

1012110040091 has 4 divisors (see below), whose sum is σ = 1014122187792. Its totient is φ = 1010097892392.

The previous prime is 1012110040079. The next prime is 1012110040093. The reversal of 1012110040091 is 1900400112101.

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 1012110040091 - 214 = 1012110023707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012110040093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006073096 + ... + 1006074101.

It is an arithmetic number, because the mean of its divisors is an integer number (253530546948).

Almost surely, 21012110040091 is an apocalyptic number.

1012110040091 is a deficient number, since it is larger than the sum of its proper divisors (2012147701).

1012110040091 is an equidigital number, since it uses as much as digits as its factorization.

1012110040091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012147700.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 1012110040091 its reverse (1900400112101), we get a palindrome (2912510152192).

The spelling of 1012110040091 in words is "one trillion, twelve billion, one hundred ten million, forty thousand, ninety-one".

Divisors: 1 503 2012147197 1012110040091