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101031220001 is a prime number
BaseRepresentation
bin101111000010111101…
…1100001001100100001
3100122210001001202011002
41132011323201030201
53123402443020001
6114225121401345
710204435125545
oct1360573411441
9318701052132
10101031220001
1139935542a38
12176b7199255
1396b135acaa
144c65db7a25
152964a3646b
hex1785ee1321

101031220001 has 2 divisors, whose sum is σ = 101031220002. Its totient is φ = 101031220000.

The previous prime is 101031219857. The next prime is 101031220063. The reversal of 101031220001 is 100022130101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100806250000 + 224970001 = 317500^2 + 14999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101031220001 is a prime.

It is not a weakly prime, because it can be changed into another prime (101031226001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50515610000 + 50515610001.

It is an arithmetic number, because the mean of its divisors is an integer number (50515610001).

Almost surely, 2101031220001 is an apocalyptic number.

It is an amenable number.

101031220001 is a deficient number, since it is larger than the sum of its proper divisors (1).

101031220001 is an equidigital number, since it uses as much as digits as its factorization.

101031220001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 101031220001 its reverse (100022130101), we get a palindrome (201053350102).

The spelling of 101031220001 in words is "one hundred one billion, thirty-one million, two hundred twenty thousand, one".