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22313131031020 = 2251676680578153
BaseRepresentation
bin1010001001011001011100…
…01111111011100111101100
32221000010002110120212121011
411010230232033323213230
510411034243020443040
6115242302203515004
74462033121253514
oct504545617734754
987003073525534
1022313131031020
117122a44846075
122604526528a64
13c5b171c3553b
14571d65b66844
1528a6382083ea
hex144b2e3fb9ec

22313131031020 has 24 divisors (see below), whose sum is σ = 47138159454624. Its totient is φ = 8871807785856.

The previous prime is 22313131030987. The next prime is 22313131031039. The reversal of 22313131031020 is 2013013131322.

It is a super-3 number, since 3×223131310310203 (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22313131030982 and 22313131031000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3340285737 + ... + 3340292416.

It is an arithmetic number, because the mean of its divisors is an integer number (1964089977276).

Almost surely, 222313131031020 is an apocalyptic number.

22313131031020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22313131031020 is an abundant number, since it is smaller than the sum of its proper divisors (24825028423604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22313131031020 is a wasteful number, since it uses less digits than its factorization.

22313131031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6680578329 (or 6680578327 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 22313131031020 its reverse (2013013131322), we get a palindrome (24326144162342).

The spelling of 22313131031020 in words is "twenty-two trillion, three hundred thirteen billion, one hundred thirty-one million, thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 167 334 668 835 1670 3340 6680578153 13361156306 26722312612 33402890765 66805781530 133611563060 1115656551551 2231313103102 4462626206204 5578282757755 11156565515510 22313131031020