1253124012 has 24 divisors (see below), whose sum is σ = 3341664256. Its totient is φ = 358035408.

The previous prime is 1253124007. The next prime is 1253124013. The reversal of 1253124012 is 2104213521.

It is a super-2 number, since 2×1253124012² = 3140639578901952288, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1253124012.

It is not an unprimeable number, because it can be changed into a prime (1253124013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7458988 + ... + 7459155.

Almost surely, 2^1253124012 is an apocalyptic number.

1253124012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1253124012 is an abundant number, since it is smaller than the sum of its proper divisors (2088540244).

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

1253124012 is a wasteful number, since it uses less digits than its factorization.

1253124012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14918157 (or 14918155 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1253124012 is about 35399.4916912659. The cubic root of 1253124012 is about 1078.1139957675.

Adding to 1253124012 its reverse (2104213521), we get a palindrome (3357337533).

The spelling of 1253124012 in words is "one billion, two hundred fifty-three million, one hundred twenty-four thousand, twelve".