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101331020031 = 383203405959
BaseRepresentation
bin101111001011111001…
…1001010100011111111
3100200112221012011110220
41132113303022203333
53130011220120111
6114314551232423
710215035313243
oct1362763124377
9320487164426
10101331020031
1139a797a015a
121777b678713
13972b4b8a67
144c93b38423
152981005e06
hex1797cca8ff

101331020031 has 8 divisors (see below), whose sum is σ = 135109983360. Its totient is φ = 67553035032.

The previous prime is 101331020017. The next prime is 101331020041. The reversal of 101331020031 is 130020133101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101331020031 - 26 = 101331019967 is a prime.

It is a super-2 number, since 2×1013310200312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101331020041) 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, 46630 + ... + 452588.

It is an arithmetic number, because the mean of its divisors is an integer number (16888747920).

Almost surely, 2101331020031 is an apocalyptic number.

101331020031 is a deficient number, since it is larger than the sum of its proper divisors (33778963329).

101331020031 is an equidigital number, since it uses as much as digits as its factorization.

101331020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489165.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 101331020031 its reverse (130020133101), we get a palindrome (231351153132).

The spelling of 101331020031 in words is "one hundred one billion, three hundred thirty-one million, twenty thousand, thirty-one".

Divisors: 1 3 83203 249609 405959 1217877 33777006677 101331020031