1351247023 has 16 divisors (see below), whose sum is σ = 1637720640. Its totient is φ = 1088349696.

The previous prime is 1351247021. The next prime is 1351247059. The reversal of 1351247023 is 3207421531.

It is not a de Polignac number, because 1351247023 - 2¹ = 1351247021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1351246982 and 1351247000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351247021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69013 + ... + 86401.

It is an arithmetic number, because the mean of its divisors is an integer number (102357540).

Almost surely, 2^1351247023 is an apocalyptic number.

1351247023 is a deficient number, since it is larger than the sum of its proper divisors (286473617).

1351247023 is a wasteful number, since it uses less digits than its factorization.

1351247023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18066.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1351247023 is about 36759.3120583071. The cubic root of 1351247023 is about 1105.5496464951.

Adding to 1351247023 its reverse (3207421531), we get a palindrome (4558668554).

The spelling of 1351247023 in words is "one billion, three hundred fifty-one million, two hundred forty-seven thousand, twenty-three".