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10010001023 = 11910000093
BaseRepresentation
bin10010101001010010…
…00111111001111111
3221211121120201221122
421110221013321333
5131000030013043
64333141021155
7503025414311
oct112451077177
927747521848
1010010001023
114277425a20
121b343b47bb
13c36aac639
146ad6077b1
153d8bd6368
hex254a47e7f

10010001023 has 4 divisors (see below), whose sum is σ = 10920001128. Its totient is φ = 9100000920.

The previous prime is 10010001017. The next prime is 10010001073. The reversal of 10010001023 is 32010001001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10010001023 is a prime.

It is a super-2 number, since 2×100100010232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10010001023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010001073) 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, 455000036 + ... + 455000057.

It is an arithmetic number, because the mean of its divisors is an integer number (2730000282).

Almost surely, 210010001023 is an apocalyptic number.

10010001023 is a deficient number, since it is larger than the sum of its proper divisors (910000105).

10010001023 is an equidigital number, since it uses as much as digits as its factorization.

10010001023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910000104.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 10010001023 its reverse (32010001001), we get a palindrome (42020002024).

The spelling of 10010001023 in words is "ten billion, ten million, one thousand, twenty-three".

Divisors: 1 11 910000093 10010001023