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10311011421 = 310352363803
BaseRepresentation
bin10011001101001010…
…11000110001011101
3222121120222122120220
421212211120301131
5132104104331141
64423052431553
7513342102534
oct114645306135
928546878526
1010311011421
11441132a547
121bb91785b9
13c842722b9
146db5a131b
15405344766
hex266958c5d

10311011421 has 16 divisors (see below), whose sum is σ = 13908251136. Its totient is φ = 6794147376.

The previous prime is 10311011407. The next prime is 10311011443. The reversal of 10311011421 is 12411011301.

10311011421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-10311011421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10311011421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311011461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129706 + ... + 193508.

It is an arithmetic number, because the mean of its divisors is an integer number (869265696).

Almost surely, 210311011421 is an apocalyptic number.

It is an amenable number.

10311011421 is a deficient number, since it is larger than the sum of its proper divisors (3597239715).

10311011421 is a wasteful number, since it uses less digits than its factorization.

10311011421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64432.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 10311011421 its reverse (12411011301), we get a palindrome (22722022722).

The spelling of 10311011421 in words is "ten billion, three hundred eleven million, eleven thousand, four hundred twenty-one".

Divisors: 1 3 103 309 523 1569 53869 63803 161607 191409 6571709 19715127 33368969 100106907 3437003807 10311011421