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2031130122210 = 2325771211307701
BaseRepresentation
bin11101100011101000110…
…010100001011111100010
321012011200221122220120100
4131203220302201133202
5231234223302402320
64153031023323230
7266513204114610
oct35435062413742
97164627586510
102031130122210
11713441003412
12289791450516
131196c4ac5927
14704430386b0
1537c7ae3c790
hex1d8e8ca17e2

2031130122210 has 384 divisors, whose sum is σ = 6178200956928. Its totient is φ = 453418560000.

The previous prime is 2031130122181. The next prime is 2031130122221. The reversal of 2031130122210 is 122210311302.

2031130122210 is a `hidden beast` number, since 20 + 311 + 3 + 0 + 122 + 210 = 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 191 ways as a sum of consecutive naturals, for example, 2897474860 + ... + 2897475560.

It is an arithmetic number, because the mean of its divisors is an integer number (16089064992).

Almost surely, 22031130122210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031130122210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3089100478464).

2031130122210 is an abundant number, since it is smaller than the sum of its proper divisors (4147070834718).

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

2031130122210 is a wasteful number, since it uses less digits than its factorization.

2031130122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1307 counting only the distinct ones).

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

Adding to 2031130122210 its reverse (122210311302), we get a palindrome (2153340433512).

The spelling of 2031130122210 in words is "two trillion, thirty-one billion, one hundred thirty million, one hundred twenty-two thousand, two hundred ten".