1201324431 has 32 divisors (see below), whose sum is σ = 1826869248. Its totient is φ = 697720320.

The previous prime is 1201324409. The next prime is 1201324433. The reversal of 1201324431 is 1344231021.

1201324431 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1201324431 - 2¹⁰ = 1201323407 is a prime.

It is a super-2 number, since 2×1201324431² = 2886360777034947522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201324398 and 1201324407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201324433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19845 + ... + 52881.

It is an arithmetic number, because the mean of its divisors is an integer number (57089664).

Almost surely, 2^1201324431 is an apocalyptic number.

1201324431 is a deficient number, since it is larger than the sum of its proper divisors (625544817).

1201324431 is a wasteful number, since it uses less digits than its factorization.

1201324431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33111.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1201324431 is about 34660.1273944572. The cubic root of 1201324431 is about 1063.0493748724.

Adding to 1201324431 its reverse (1344231021), we get a palindrome (2545555452).

The spelling of 1201324431 in words is "one billion, two hundred one million, three hundred twenty-four thousand, four hundred thirty-one".