1201044531 has 16 divisors (see below), whose sum is σ = 1645695488. Its totient is φ = 778572000.

The previous prime is 1201044503. The next prime is 1201044547. The reversal of 1201044531 is 1354401021.

It is not a de Polignac number, because 1201044531 - 2²² = 1196850227 is a prime.

It is a super-2 number, since 2×1201044531² = 2885015930890019922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201044498 and 1201044507.

It is not an unprimeable number, because it can be changed into a prime (1201044571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294456 + ... + 298506.

It is an arithmetic number, because the mean of its divisors is an integer number (102855968).

Almost surely, 2^1201044531 is an apocalyptic number.

1201044531 is a deficient number, since it is larger than the sum of its proper divisors (444650957).

1201044531 is a wasteful number, since it uses less digits than its factorization.

1201044531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6762.

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

The square root of 1201044531 is about 34656.0893783473. The cubic root of 1201044531 is about 1062.9668074925.

Adding to 1201044531 its reverse (1354401021), we get a palindrome (2555445552).

The spelling of 1201044531 in words is "one billion, two hundred one million, forty-four thousand, five hundred thirty-one".