2031601011 has 24 divisors (see below), whose sum is σ = 3134160960. Its totient is φ = 1166465520.

The previous prime is 2031601007. The next prime is 2031601037. The reversal of 2031601011 is 1101061302.

It is not a de Polignac number, because 2031601011 - 2² = 2031601007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2031601081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140385 + ... + 154178.

It is an arithmetic number, because the mean of its divisors is an integer number (130590040).

Almost surely, 2^2031601011 is an apocalyptic number.

2031601011 is a deficient number, since it is larger than the sum of its proper divisors (1102559949).

2031601011 is a wasteful number, since it uses less digits than its factorization.

2031601011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294607 (or 294596 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2031601011 is about 45073.2848924948. The cubic root of 2031601011 is about 1266.5222003368.

Adding to 2031601011 its reverse (1101061302), we get a palindrome (3132662313).

The spelling of 2031601011 in words is "two billion, thirty-one million, six hundred one thousand, eleven".