1012343457 has 4 divisors (see below), whose sum is σ = 1349791280. Its totient is φ = 674895636.

The previous prime is 1012343441. The next prime is 1012343461. The reversal of 1012343457 is 7543432101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7543432101 = 3 ⋅2514477367.

It is not a de Polignac number, because 1012343457 - 2⁴ = 1012343441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012343467) 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, 168723907 + ... + 168723912.

It is an arithmetic number, because the mean of its divisors is an integer number (337447820).

Almost surely, 2^1012343457 is an apocalyptic number.

It is an amenable number.

1012343457 is a deficient number, since it is larger than the sum of its proper divisors (337447823).

1012343457 is an equidigital number, since it uses as much as digits as its factorization.

1012343457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337447822.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1012343457 is about 31817.3452223783. The cubic root of 1012343457 is about 1004.0976718178.

Adding to 1012343457 its reverse (7543432101), we get a palindrome (8555775558).

The spelling of 1012343457 in words is "one billion, twelve million, three hundred forty-three thousand, four hundred fifty-seven".