1320434031 has 8 divisors (see below), whose sum is σ = 2012089984. Its totient is φ = 754533720.

The previous prime is 1320434029. The next prime is 1320434033. The reversal of 1320434031 is 1304340231.

It is an interprime number because it is at equal distance from previous prime (1320434029) and next prime (1320434033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320434031 - 2¹ = 1320434029 is a prime.

It is a super-2 number, since 2×1320434031² = 3487092060445817922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 62877811 = 1320434031 / (1 + 3 + 2 + 0 + 4 + 3 + 4 + 0 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320433989 and 1320434007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320434033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31438885 + ... + 31438926.

It is an arithmetic number, because the mean of its divisors is an integer number (251511248).

Almost surely, 2^1320434031 is an apocalyptic number.

1320434031 is a deficient number, since it is larger than the sum of its proper divisors (691655953).

1320434031 is an equidigital number, since it uses as much as digits as its factorization.

1320434031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62877821.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1320434031 is about 36337.7769132896. The cubic root of 1320434031 is about 1097.0815284259.

Adding to 1320434031 its reverse (1304340231), we get a palindrome (2624774262).

The spelling of 1320434031 in words is "one billion, three hundred twenty million, four hundred thirty-four thousand, thirty-one".