1021213514 has 4 divisors (see below), whose sum is σ = 1531820274. Its totient is φ = 510606756.

The previous prime is 1021213489. The next prime is 1021213541. The reversal of 1021213514 is 4153121201.

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., 1019205625 + 2007889 = 31925^2 + 1417^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255303377 + ... + 255303380.

Almost surely, 2^1021213514 is an apocalyptic number.

1021213514 is a deficient number, since it is larger than the sum of its proper divisors (510606760).

1021213514 is an equidigital number, since it uses as much as digits as its factorization.

1021213514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510606759.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1021213514 is about 31956.4314966487. The cubic root of 1021213514 is about 1007.0217509446.

Adding to 1021213514 its reverse (4153121201), we get a palindrome (5174334715).

The spelling of 1021213514 in words is "one billion, twenty-one million, two hundred thirteen thousand, five hundred fourteen".