2012031101 has 2 divisors, whose sum is σ = 2012031102. Its totient is φ = 2012031100.

The previous prime is 2012031097. The next prime is 2012031127. The reversal of 2012031101 is 1011302102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1400705476 + 611325625 = 37426^2 + 24725^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012031101 - 2² = 2012031097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012031181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006015550 + 1006015551.

It is an arithmetic number, because the mean of its divisors is an integer number (1006015551).

Almost surely, 2^2012031101 is an apocalyptic number.

It is an amenable number.

2012031101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012031101 is an equidigital number, since it uses as much as digits as its factorization.

2012031101 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.

The square root of 2012031101 is about 44855.6696639343. The cubic root of 2012031101 is about 1262.4423738165.

Adding to 2012031101 its reverse (1011302102), we get a palindrome (3023333203).

It can be divided in two parts, 201 and 2031101, that added together give a palindrome (2031302).

The spelling of 2012031101 in words is "two billion, twelve million, thirty-one thousand, one hundred one".