1112157102 has 64 divisors (see below), whose sum is σ = 2725816320. Its totient is φ = 295266816.

The previous prime is 1112157091. The next prime is 1112157107. The reversal of 1112157102 is 2017512111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112157107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46548 + ... + 66264.

It is an arithmetic number, because the mean of its divisors is an integer number (42590880).

Almost surely, 2^1112157102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112157102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1362908160).

1112157102 is an abundant number, since it is smaller than the sum of its proper divisors (1613659218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1112157102 is a wasteful number, since it uses less digits than its factorization.

1112157102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19825.

The product of its (nonzero) digits is 140, while the sum is 21.

The square root of 1112157102 is about 33349.0195058266. The cubic root of 1112157102 is about 1036.0690804053.

Adding to 1112157102 its reverse (2017512111), we get a palindrome (3129669213).

The spelling of 1112157102 in words is "one billion, one hundred twelve million, one hundred fifty-seven thousand, one hundred two".