1020019347 has 6 divisors (see below), whose sum is σ = 1473361292. Its totient is φ = 680012892.

The previous prime is 1020019331. The next prime is 1020019409. The reversal of 1020019347 is 7439100201.

It is not a de Polignac number, because 1020019347 - 2⁴ = 1020019331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020019347.

It is not an unprimeable number, because it can be changed into a prime (1020019747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56667733 + ... + 56667750.

Almost surely, 2^1020019347 is an apocalyptic number.

1020019347 is a deficient number, since it is larger than the sum of its proper divisors (453341945).

1020019347 is a wasteful number, since it uses less digits than its factorization.

1020019347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113335489 (or 113335486 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1020019347 is about 31937.7417329404. The cubic root of 1020019347 is about 1006.6290739413.

Adding to 1020019347 its reverse (7439100201), we get a palindrome (8459119548).

The spelling of 1020019347 in words is "one billion, twenty million, nineteen thousand, three hundred forty-seven".