1153113111 has 16 divisors (see below), whose sum is σ = 1808805600. Its totient is φ = 723521664.

The previous prime is 1153113083. The next prime is 1153113121. The reversal of 1153113111 is 1113113511.

1153113111 is a `hidden beast` number, since 1 + 1 + 531 + 131 + 1 + 1 = 666.

It is not a de Polignac number, because 1153113111 - 2¹⁰ = 1153112087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153113121) 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, 1255656 + ... + 1256573.

It is an arithmetic number, because the mean of its divisors is an integer number (113050350).

Almost surely, 2^1153113111 is an apocalyptic number.

1153113111 is a deficient number, since it is larger than the sum of its proper divisors (655692489).

1153113111 is a wasteful number, since it uses less digits than its factorization.

1153113111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512255 (or 2512249 counting only the distinct ones).

The product of its digits is 45, while the sum is 18.

The square root of 1153113111 is about 33957.5192115090. The cubic root of 1153113111 is about 1048.6340851155.

Adding to 1153113111 its reverse (1113113511), we get a palindrome (2266226622).

It can be divided in two parts, 11531 and 13111, that added together give a palindrome (24642).

The spelling of 1153113111 in words is "one billion, one hundred fifty-three million, one hundred thirteen thousand, one hundred eleven".