1233153012 has 72 divisors (see below), whose sum is σ = 3604623456. Its totient is φ = 325225152.

The previous prime is 1233153001. The next prime is 1233153013. The reversal of 1233153012 is 2103513321.

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 1233153012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233153013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73018 + ... + 88305.

Almost surely, 2^1233153012 is an apocalyptic number.

1233153012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1233153012 is an abundant number, since it is smaller than the sum of its proper divisors (2371470444).

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

1233153012 is a wasteful number, since it uses less digits than its factorization.

1233153012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161357 (or 161348 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1233153012 is about 35116.2784474665. The cubic root of 1233153012 is about 1072.3560080757.

Adding to 1233153012 its reverse (2103513321), we get a palindrome (3336666333).

The spelling of 1233153012 in words is "one billion, two hundred thirty-three million, one hundred fifty-three thousand, twelve".