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20202044231031 = 31343113106606531
BaseRepresentation
bin1001001011111101001111…
…01010111000110101110111
32122112022000012022212221120
410211332213222320311313
510121442241310343111
6110544405131115023
74153356326450055
oct445764752706567
978468005285846
1020202044231031
116489703336273
12232335b8a2a73
13b37076c95870
144dbad9a2d1d5
1525077ca08406
hex125fa7ab8d77

20202044231031 has 32 divisors (see below), whose sum is σ = 29945348412672. Its totient is φ = 12035450810880.

The previous prime is 20202044231023. The next prime is 20202044231183. The reversal of 20202044231031 is 13013244020202.

It is a happy number.

It is not a de Polignac number, because 20202044231031 - 23 = 20202044231023 is a prime.

It is a super-2 number, since 2×202020442310312 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20202044230992 and 20202044231010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202044238031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53113765 + ... + 53492766.

It is an arithmetic number, because the mean of its divisors is an integer number (935792137896).

Almost surely, 220202044231031 is an apocalyptic number.

20202044231031 is a deficient number, since it is larger than the sum of its proper divisors (9743304181641).

20202044231031 is a wasteful number, since it uses less digits than its factorization.

20202044231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106606703.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20202044231031 its reverse (13013244020202), we get a palindrome (33215288251233).

The spelling of 20202044231031 in words is "twenty trillion, two hundred two billion, forty-four million, two hundred thirty-one thousand, thirty-one".

Divisors: 1 3 13 39 43 113 129 339 559 1469 1677 4407 4859 14577 63167 189501 106606531 319819593 1385884903 4157654709 4584080833 12046538003 13752242499 36139614009 59593050829 156604994039 178779152487 469814982117 518001134129 1554003402387 6734014743677 20202044231031