2101231013 has 16 divisors (see below), whose sum is σ = 2443094784. Its totient is φ = 1769953920.

The previous prime is 2101230983. The next prime is 2101231049. The reversal of 2101231013 is 3101321012.

It is not a de Polignac number, because 2101231013 - 2²² = 2097036709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101230013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150881 + ... + 164217.

It is an arithmetic number, because the mean of its divisors is an integer number (152693424).

Almost surely, 2^2101231013 is an apocalyptic number.

It is an amenable number.

2101231013 is a deficient number, since it is larger than the sum of its proper divisors (341863771).

2101231013 is a wasteful number, since it uses less digits than its factorization.

2101231013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13732.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2101231013 is about 45839.1864347525. The cubic root of 2101231013 is about 1280.8293398559.

Adding to 2101231013 its reverse (3101321012), we get a palindrome (5202552025).

It can be divided in two parts, 21012 and 31013, that added together give a palindrome (52025).

The spelling of 2101231013 in words is "two billion, one hundred one million, two hundred thirty-one thousand, thirteen".