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1021010100023 = 2239866352639
BaseRepresentation
bin11101101101110001111…
…00011011111100110111
310121121101221122002110202
432312320330123330313
5113212012041200043
62101013501511115
7133523403440654
oct16667074337467
93547357562422
101021010100023
1136400a647021
12145a6627249b
13753860088a4
14375ba948c2b
151b85b00b1b8
hexedb8f1bf37

1021010100023 has 8 divisors (see below), whose sum is σ = 1021603430400. Its totient is φ = 1020416896728.

The previous prime is 1021010099927. The next prime is 1021010100059. The reversal of 1021010100023 is 3200010101201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021010100023 - 236 = 952290623287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021010099977 and 1021010100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021010100323) 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, 19370138 + ... + 19422776.

It is an arithmetic number, because the mean of its divisors is an integer number (127700428800).

Almost surely, 21021010100023 is an apocalyptic number.

1021010100023 is a deficient number, since it is larger than the sum of its proper divisors (593330377).

1021010100023 is an equidigital number, since it uses as much as digits as its factorization.

1021010100023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63541.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1021010100023 its reverse (3200010101201), we get a palindrome (4221020201224).

The spelling of 1021010100023 in words is "one trillion, twenty-one billion, ten million, one hundred thousand, twenty-three".

Divisors: 1 2239 8663 52639 19396457 117858721 456011657 1021010100023