2031010101 has 12 divisors (see below), whose sum is σ = 3061232928. Its totient is φ = 1295136744.

The previous prime is 2031010081. The next prime is 2031010103. The reversal of 2031010101 is 1010101302.

It is not a de Polignac number, because 2031010101 - 2¹¹ = 2031008053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

2031010101 is a modest number, since divided by 10101 gives 2031 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031010103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4905615 + ... + 4906028.

It is an arithmetic number, because the mean of its divisors is an integer number (255102744).

Almost surely, 2^2031010101 is an apocalyptic number.

It is an amenable number.

2031010101 is a deficient number, since it is larger than the sum of its proper divisors (1030222827).

2031010101 is a wasteful number, since it uses less digits than its factorization.

2031010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9811672 (or 9811669 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 2031010101 is about 45066.7294242660. The cubic root of 2031010101 is about 1266.3993951861.

Adding to 2031010101 its reverse (1010101302), we get a palindrome (3041111403).

The spelling of 2031010101 in words is "two billion, thirty-one million, ten thousand, one hundred one".