1101123013 has 2 divisors, whose sum is σ = 1101123014. Its totient is φ = 1101123012.

The previous prime is 1101122977. The next prime is 1101123043. The reversal of 1101123013 is 3103211011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1072038564 + 29084449 = 32742^2 + 5393^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101123013 - 2²⁵ = 1067568581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101122984 and 1101123002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101123043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550561506 + 550561507.

It is an arithmetic number, because the mean of its divisors is an integer number (550561507).

Almost surely, 2^1101123013 is an apocalyptic number.

It is an amenable number.

1101123013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101123013 is an equidigital number, since it uses as much as digits as its factorization.

1101123013 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 1101123013 is about 33183.1736426762. The cubic root of 1101123013 is about 1032.6312880949.

Adding to 1101123013 its reverse (3103211011), we get a palindrome (4204334024).

The spelling of 1101123013 in words is "one billion, one hundred one million, one hundred twenty-three thousand, thirteen".