1331434031 has 2 divisors, whose sum is σ = 1331434032. Its totient is φ = 1331434030.

The previous prime is 1331434021. The next prime is 1331434043. The reversal of 1331434031 is 1304341331.

It is a weak prime.

It is an emirp because it is prime and its reverse (1304341331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1331434031 - 2⁶ = 1331433967 is a prime.

It is a super-2 number, since 2×1331434031² = 3545433157809817922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331433988 and 1331434006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331434021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665717015 + 665717016.

It is an arithmetic number, because the mean of its divisors is an integer number (665717016).

Almost surely, 2^1331434031 is an apocalyptic number.

1331434031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331434031 is an equidigital number, since it uses as much as digits as its factorization.

1331434031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1331434031 is about 36488.8206304342. The cubic root of 1331434031 is about 1100.1195547742.

Adding to 1331434031 its reverse (1304341331), we get a palindrome (2635775362).

The spelling of 1331434031 in words is "one billion, three hundred thirty-one million, four hundred thirty-four thousand, thirty-one".