2403123012 has 96 divisors (see below), whose sum is σ = 6306854400. Its totient is φ = 791271936.

The previous prime is 2403123011. The next prime is 2403123017. The reversal of 2403123012 is 2103213042.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2403123011) 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, 4052188 + ... + 4052780.

It is an arithmetic number, because the mean of its divisors is an integer number (65696400).

Almost surely, 2^2403123012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2403123012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3153427200).

2403123012 is an abundant number, since it is smaller than the sum of its proper divisors (3903731388).

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

2403123012 is a wasteful number, since it uses less digits than its factorization.

2403123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2403123012 is about 49021.6586010714. The cubic root of 2403123012 is about 1339.4463837670.

Adding to 2403123012 its reverse (2103213042), we get a palindrome (4506336054).

The spelling of 2403123012 in words is "two billion, four hundred three million, one hundred twenty-three thousand, twelve".