1201013431 has 2 divisors, whose sum is σ = 1201013432. Its totient is φ = 1201013430.

The previous prime is 1201013417. The next prime is 1201013441. The reversal of 1201013431 is 1343101021.

It is a strong prime.

It is an emirp because it is prime and its reverse (1343101021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201013431 is a prime.

It is a super-2 number, since 2×1201013431² = 2884866522884783522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201013441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600506715 + 600506716.

It is an arithmetic number, because the mean of its divisors is an integer number (600506716).

Almost surely, 2^1201013431 is an apocalyptic number.

1201013431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201013431 is an equidigital number, since it uses as much as digits as its factorization.

1201013431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1201013431 is about 34655.6406808473. The cubic root of 1201013431 is about 1062.9576325474.

Adding to 1201013431 its reverse (1343101021), we get a palindrome (2544114452).

The spelling of 1201013431 in words is "one billion, two hundred one million, thirteen thousand, four hundred thirty-one".