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101142312631 = 896771678627
BaseRepresentation
bin101111000110010001…
…1010011011010110111
3100200001210002211120221
41132030203103122313
53124114413001011
6114244130435211
710210254321013
oct1361443233267
9320053084527
10101142312631
1139992220528
1217728432b07
1396cb386789
144c76a55543
15296e67c971
hex178c8d36b7

101142312631 has 8 divisors (see below), whose sum is σ = 102429880560. Its totient is φ = 99858103488.

The previous prime is 101142312599. The next prime is 101142312641. The reversal of 101142312631 is 136213241101.

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 101142312631 - 25 = 101142312599 is a prime.

It is a super-2 number, since 2×1011423126312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101142312596 and 101142312605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101142312641) 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, 779061 + ... + 899566.

It is an arithmetic number, because the mean of its divisors is an integer number (12803735070).

Almost surely, 2101142312631 is an apocalyptic number.

101142312631 is a deficient number, since it is larger than the sum of its proper divisors (1287567929).

101142312631 is an equidigital number, since it uses as much as digits as its factorization.

101142312631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679393.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 101142312631 its reverse (136213241101), we get a palindrome (237355553732).

The spelling of 101142312631 in words is "one hundred one billion, one hundred forty-two million, three hundred twelve thousand, six hundred thirty-one".

Divisors: 1 89 677 60253 1678627 149397803 1136430479 101142312631