1002013042 has 4 divisors (see below), whose sum is σ = 1503019566. Its totient is φ = 501006520.

The previous prime is 1002013037. The next prime is 1002013057. The reversal of 1002013042 is 2403102001.

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

It can be written as a sum of positive squares in only one way, i.e., 937033321 + 64979721 = 30611^2 + 8061^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250503259 + ... + 250503262.

Almost surely, 2^1002013042 is an apocalyptic number.

1002013042 is a deficient number, since it is larger than the sum of its proper divisors (501006524).

1002013042 is an equidigital number, since it uses as much as digits as its factorization.

1002013042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501006523.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1002013042 is about 31654.5895882414. The cubic root of 1002013042 is about 1000.6705642431.

Adding to 1002013042 its reverse (2403102001), we get a palindrome (3405115043).

The spelling of 1002013042 in words is "one billion, two million, thirteen thousand, forty-two".