1201155324 has 24 divisors (see below), whose sum is σ = 2855578320. Its totient is φ = 392830464.

The previous prime is 1201155317. The next prime is 1201155337. The reversal of 1201155324 is 4235511021.

It is a happy number.

It is a super-2 number, since 2×1201155324² = 2885548224747089952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201155294 and 1201155303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943669 + ... + 944940.

It is an arithmetic number, because the mean of its divisors is an integer number (118982430).

Almost surely, 2^1201155324 is an apocalyptic number.

It is an amenable number.

1201155324 is an abundant number, since it is smaller than the sum of its proper divisors (1654422996).

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

1201155324 is a wasteful number, since it uses less digits than its factorization.

1201155324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888669 (or 1888667 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1201155324 is about 34657.6878051609. The cubic root of 1201155324 is about 1062.9994917262. Note that the first 3 decimals are identical.

Adding to 1201155324 its reverse (4235511021), we get a palindrome (5436666345).

The spelling of 1201155324 in words is "one billion, two hundred one million, one hundred fifty-five thousand, three hundred twenty-four".