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101331441021 = 3231487987607
BaseRepresentation
bin101111001011111010…
…0110001010101111101
3100200112221222112222010
41132113310301111331
53130011322103041
6114315004241433
710215042015516
oct1362764612575
9320487875863
10101331441021
1139a79a58488
121777b840279
13972b605575
144c93c07a0d
15298108aa16
hex1797d3157d

101331441021 has 16 divisors (see below), whose sum is σ = 141077827584. Its totient is φ = 64573630704.

The previous prime is 101331441019. The next prime is 101331441077. The reversal of 101331441021 is 120144133101.

It is not a de Polignac number, because 101331441021 - 21 = 101331441019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101331481021) 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 15 ways as a sum of consecutive naturals, for example, 391201 + ... + 596406.

It is an arithmetic number, because the mean of its divisors is an integer number (8817364224).

Almost surely, 2101331441021 is an apocalyptic number.

It is an amenable number.

101331441021 is a deficient number, since it is larger than the sum of its proper divisors (39746386563).

101331441021 is a wasteful number, since it uses less digits than its factorization.

101331441021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989120.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 101331441021 its reverse (120144133101), we get a palindrome (221475574122).

The spelling of 101331441021 in words is "one hundred one billion, three hundred thirty-one million, four hundred forty-one thousand, twenty-one".

Divisors: 1 3 23 69 1487 4461 34201 102603 987607 2962821 22714961 68144883 1468571609 4405714827 33777147007 101331441021