1101013231 has 2 divisors, whose sum is σ = 1101013232. Its totient is φ = 1101013230.

The previous prime is 1101013223. The next prime is 1101013253. The reversal of 1101013231 is 1323101011.

It is a weak prime.

It is an emirp because it is prime and its reverse (1323101011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101013231 - 2³ = 1101013223 is a prime.

It is a super-2 number, since 2×1101013231² = 2424460269674118722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101013261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550506615 + 550506616.

It is an arithmetic number, because the mean of its divisors is an integer number (550506616).

Almost surely, 2^1101013231 is an apocalyptic number.

1101013231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101013231 is an equidigital number, since it uses as much as digits as its factorization.

1101013231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1101013231 is about 33181.5194197011. The cubic root of 1101013231 is about 1032.5969691634.

Adding to 1101013231 its reverse (1323101011), we get a palindrome (2424114242).

The spelling of 1101013231 in words is "one billion, one hundred one million, thirteen thousand, two hundred thirty-one".