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20122312031010 = 23257311439716003
BaseRepresentation
bin1001001001101000101110…
…10000101011101100100010
32122020200012112010110110100
410210310113100223230202
510114140443334443020
6110444021301243230
74144534436104320
oct444642720535442
978220175113410
1020122312031010
116458908610292
12230ba09703516
13b2c6ab496397
144d7cd4684d10
1524d662cd7a90
hex124d1742bb22

20122312031010 has 192 divisors, whose sum is σ = 61763765207040. Its totient is φ = 4447918984320.

The previous prime is 20122312030927. The next prime is 20122312031027. The reversal of 20122312031010 is 1013021322102.

20122312031010 is a `hidden beast` number, since 2 + 0 + 1 + 223 + 120 + 310 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27745669 + ... + 28461671.

It is an arithmetic number, because the mean of its divisors is an integer number (321686277120).

Almost surely, 220122312031010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122312031010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30881882603520).

20122312031010 is an abundant number, since it is smaller than the sum of its proper divisors (41641453176030).

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

20122312031010 is a wasteful number, since it uses less digits than its factorization.

20122312031010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717493 (or 717490 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20122312031010 its reverse (1013021322102), we get a palindrome (21135333353112).

The spelling of 20122312031010 in words is "twenty trillion, one hundred twenty-two billion, three hundred twelve million, thirty-one thousand, ten".