1201441431 has 4 divisors (see below), whose sum is σ = 1601921912. Its totient is φ = 800960952.

The previous prime is 1201441429. The next prime is 1201441441. The reversal of 1201441431 is 1341441021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1201441431 - 2¹ = 1201441429 is a prime.

It is a super-2 number, since 2×1201441431² = 2886923024246655522, 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 = 1201441398 and 1201441407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201441411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200240236 + ... + 200240241.

It is an arithmetic number, because the mean of its divisors is an integer number (400480478).

Almost surely, 2^1201441431 is an apocalyptic number.

1201441431 is a deficient number, since it is larger than the sum of its proper divisors (400480481).

1201441431 is an equidigital number, since it uses as much as digits as its factorization.

1201441431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400480480.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1201441431 is about 34661.8151717419. The cubic root of 1201441431 is about 1063.0838847672.

Adding to 1201441431 its reverse (1341441021), we get a palindrome (2542882452).

The spelling of 1201441431 in words is "one billion, two hundred one million, four hundred forty-one thousand, four hundred thirty-one".