1351263043 has 4 divisors (see below), whose sum is σ = 1455206368. Its totient is φ = 1247319720.

The previous prime is 1351262993. The next prime is 1351263049. The reversal of 1351263043 is 3403621531.

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

It is a cyclic number.

It is not a de Polignac number, because 1351263043 - 2²⁵ = 1317708611 is a prime.

It is a super-2 number, since 2×1351263043² = 3651823622755239698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351263049) 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, 51971643 + ... + 51971668.

It is an arithmetic number, because the mean of its divisors is an integer number (363801592).

Almost surely, 2^1351263043 is an apocalyptic number.

1351263043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1351263043 is a deficient number, since it is larger than the sum of its proper divisors (103943325).

1351263043 is a wasteful number, since it uses less digits than its factorization.

1351263043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103943324.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1351263043 is about 36759.5299616304. The cubic root of 1351263043 is about 1105.5540155051.

Adding to 1351263043 its reverse (3403621531), we get a palindrome (4754884574).

The spelling of 1351263043 in words is "one billion, three hundred fifty-one million, two hundred sixty-three thousand, forty-three".