1201152620 has 12 divisors (see below), whose sum is σ = 2522420544. Its totient is φ = 480461040.

The previous prime is 1201152619. The next prime is 1201152637. The reversal of 1201152620 is 262511021.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 60057631 = 1201152620 / (1 + 2 + 0 + 1 + 1 + 5 + 2 + 6 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1201152592 and 1201152601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30028796 + ... + 30028835.

It is an arithmetic number, because the mean of its divisors is an integer number (210201712).

Almost surely, 2^1201152620 is an apocalyptic number.

1201152620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201152620 is an abundant number, since it is smaller than the sum of its proper divisors (1321267924).

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

1201152620 is a wasteful number, since it uses less digits than its factorization.

1201152620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60057640 (or 60057638 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1201152620 is about 34657.6487950351. The cubic root of 1201152620 is about 1062.9986940629.

Adding to 1201152620 its reverse (262511021), we get a palindrome (1463663641).

The spelling of 1201152620 in words is "one billion, two hundred one million, one hundred fifty-two thousand, six hundred twenty".