Search a number
-
+
1010200120021 = 43193791212293
BaseRepresentation
bin11101011001101001001…
…11101000101011010101
310120120111120202012200001
432230310213220223111
5113022342212320041
62052025102251301
7132661462225201
oct16546447505325
93516446665601
101010200120021
1135a4726a5054
12143949b86b31
1374352582b11
1436c72dbdb01
151b426ea4131
hexeb349e8ad5

1010200120021 has 8 divisors (see below), whose sum is σ = 1033747339680. Its totient is φ = 986655363792.

The previous prime is 1010200120003. The next prime is 1010200120031. The reversal of 1010200120021 is 1200210020101.

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 1010200120021 - 27 = 1010200119893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010200120001) 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, 227151 + ... + 1439443.

It is an arithmetic number, because the mean of its divisors is an integer number (129218417460).

Almost surely, 21010200120021 is an apocalyptic number.

It is an amenable number.

1010200120021 is a deficient number, since it is larger than the sum of its proper divisors (23547219659).

1010200120021 is a wasteful number, since it uses less digits than its factorization.

1010200120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231715.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1010200120021 its reverse (1200210020101), we get a palindrome (2210410140122).

The spelling of 1010200120021 in words is "one trillion, ten billion, two hundred million, one hundred twenty thousand, twenty-one".

Divisors: 1 43 19379 833297 1212293 52128599 23493026047 1010200120021