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22123130031 = 324721520679
BaseRepresentation
bin10100100110101001…
…000010110010101111
32010002210120110010100
4110212221002302233
5330302010130111
614055131242143
71412142334242
oct244651026257
963083513110
1022123130031
119422a26042
124354ba9353
1321175037b2
1410dc273259
15897351756
hex526a42caf

22123130031 has 12 divisors (see below), whose sum is σ = 31962462480. Its totient is φ = 14745600960.

The previous prime is 22123130023. The next prime is 22123130039. The reversal of 22123130031 is 13003132122.

It is an interprime number because it is at equal distance from previous prime (22123130023) and next prime (22123130039).

It is not a de Polignac number, because 22123130031 - 23 = 22123130023 is a prime.

It is a super-2 number, since 2×221231300312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22123129986 and 22123130013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123130039) 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 11 ways as a sum of consecutive naturals, for example, 217851 + ... + 302828.

It is an arithmetic number, because the mean of its divisors is an integer number (2663538540).

Almost surely, 222123130031 is an apocalyptic number.

22123130031 is a deficient number, since it is larger than the sum of its proper divisors (9839332449).

22123130031 is a wasteful number, since it uses less digits than its factorization.

22123130031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525406 (or 525403 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 22123130031 its reverse (13003132122), we get a palindrome (35126262153).

The spelling of 22123130031 in words is "twenty-two billion, one hundred twenty-three million, one hundred thirty thousand, thirty-one".

Divisors: 1 3 9 4721 14163 42489 520679 1562037 4686111 2458125559 7374376677 22123130031