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1012642234021 = 11611509153851
BaseRepresentation
bin11101011110001100010…
…11100011111010100101
310120210210210000110021201
432233012023203322211
5113042342402442041
62053111301242501
7133106134653115
oct16570613437245
93523723013251
101012642234021
11360506161490
1214430ba03431
13746514c55a2
1437025483045
151b51b598631
hexebc62e3ea5

1012642234021 has 8 divisors (see below), whose sum is σ = 1122810465888. Its totient is φ = 905492310000.

The previous prime is 1012642234013. The next prime is 1012642234031. The reversal of 1012642234021 is 1204322462101.

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 1012642234021 - 23 = 1012642234013 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 (1012642234031) 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 7 ways as a sum of consecutive naturals, for example, 754576255 + ... + 754577596.

It is an arithmetic number, because the mean of its divisors is an integer number (140351308236).

Almost surely, 21012642234021 is an apocalyptic number.

1012642234021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012642234021 is a deficient number, since it is larger than the sum of its proper divisors (110168231867).

1012642234021 is a wasteful number, since it uses less digits than its factorization.

1012642234021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509153923.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1012642234021 its reverse (1204322462101), we get a palindrome (2216964696122).

The spelling of 1012642234021 in words is "one trillion, twelve billion, six hundred forty-two million, two hundred thirty-four thousand, twenty-one".

Divisors: 1 11 61 671 1509153851 16600692361 92058384911 1012642234021