1242013110 has 96 divisors (see below), whose sum is σ = 3368418048. Its totient is φ = 292406400.

The previous prime is 1242013099. The next prime is 1242013111. The reversal of 1242013110 is 113102421.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1242013110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242013111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111285 + ... + 121935.

It is an arithmetic number, because the mean of its divisors is an integer number (35087688).

Almost surely, 2^1242013110 is an apocalyptic number.

1242013110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242013110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1684209024).

1242013110 is an abundant number, since it is smaller than the sum of its proper divisors (2126404938).

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

1242013110 is a wasteful number, since it uses less digits than its factorization.

1242013110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10710 (or 10697 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1242013110 is about 35242.2063724733. The cubic root of 1242013110 is about 1074.9181433976.

Adding to 1242013110 its reverse (113102421), we get a palindrome (1355115531).

The spelling of 1242013110 in words is "one billion, two hundred forty-two million, thirteen thousand, one hundred ten".