1021061242 has 16 divisors (see below), whose sum is σ = 1624174632. Its totient is φ = 479761920.

The previous prime is 1021061233. The next prime is 1021061263. The reversal of 1021061242 is 2421601201.

It can be written as a sum of positive squares in 4 ways, for example, as 949810761 + 71250481 = 30819^2 + 8441^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243 + ... + 45190.

Almost surely, 2^1021061242 is an apocalyptic number.

1021061242 is a deficient number, since it is larger than the sum of its proper divisors (603113390).

1021061242 is a wasteful number, since it uses less digits than its factorization.

1021061242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46113.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1021061242 is about 31954.0489140265. The cubic root of 1021061242 is about 1006.9716964959.

Adding to 1021061242 its reverse (2421601201), we get a palindrome (3442662443).

The spelling of 1021061242 in words is "one billion, twenty-one million, sixty-one thousand, two hundred forty-two".