1021142006 has 4 divisors (see below), whose sum is σ = 1531713012. Its totient is φ = 510571002.

The previous prime is 1021141993. The next prime is 1021142039. The reversal of 1021142006 is 6002411201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6002411201 = 19 ⋅315916379.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255285500 + ... + 255285503.

It is an arithmetic number, because the mean of its divisors is an integer number (382928253).

Almost surely, 2^1021142006 is an apocalyptic number.

1021142006 is a deficient number, since it is larger than the sum of its proper divisors (510571006).

1021142006 is an equidigital number, since it uses as much as digits as its factorization.

1021142006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510571005.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1021142006 is about 31955.3126412495. The cubic root of 1021142006 is about 1006.9982456439.

Adding to 1021142006 its reverse (6002411201), we get a palindrome (7023553207).

The spelling of 1021142006 in words is "one billion, twenty-one million, one hundred forty-two thousand, six".