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131102223212431 = 4317317623635329
BaseRepresentation
bin11101110011110010011101…
…011100011001111110001111
3122012012020202100102221121201
4131303302131130121332033
5114140434323120244211
61142455310242410331
736420552210344062
oct3563623534317617
9565166670387551
10131102223212431
11388561601a2669
12128545a53609a7
13581cb6ab2b473
14245354aa268d9
15102540a2ee0c1
hex773c9d719f8f

131102223212431 has 8 divisors (see below), whose sum is σ = 134926552086480. Its totient is φ = 127313141609472.

The previous prime is 131102223212419. The next prime is 131102223212447. The reversal of 131102223212431 is 134212322201131.

It is a happy number.

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

It is not a de Polignac number, because 131102223212431 - 217 = 131102223081359 is a prime.

It is a super-2 number, since 2×1311022232124312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131102223212431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131102223222431) 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, 8811810226 + ... + 8811825103.

It is an arithmetic number, because the mean of its divisors is an integer number (16865819010810).

Almost surely, 2131102223212431 is an apocalyptic number.

131102223212431 is a deficient number, since it is larger than the sum of its proper divisors (3824328874049).

131102223212431 is a wasteful number, since it uses less digits than its factorization.

131102223212431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17623635545.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 131102223212431 its reverse (134212322201131), we get a palindrome (265314545413562).

The spelling of 131102223212431 in words is "one hundred thirty-one trillion, one hundred two billion, two hundred twenty-three million, two hundred twelve thousand, four hundred thirty-one".

Divisors: 1 43 173 7439 17623635329 757816319147 3048888911917 131102223212431