1020315142 has 24 divisors (see below), whose sum is σ = 1942197480. Its totient is φ = 397524960.

The previous prime is 1020315119. The next prime is 1020315169. The reversal of 1020315142 is 2415130201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 472167 + ... + 474322.

It is an arithmetic number, because the mean of its divisors is an integer number (80924895).

Almost surely, 2^1020315142 is an apocalyptic number.

1020315142 is a deficient number, since it is larger than the sum of its proper divisors (921882338).

1020315142 is a wasteful number, since it uses less digits than its factorization.

1020315142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946516 (or 946509 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1020315142 is about 31942.3722037046. The cubic root of 1020315142 is about 1006.7263685238.

Adding to 1020315142 its reverse (2415130201), we get a palindrome (3435445343).

The spelling of 1020315142 in words is "one billion, twenty million, three hundred fifteen thousand, one hundred forty-two".