1021243234 has 16 divisors (see below), whose sum is σ = 1672735680. Its totient is φ = 463754160.

The previous prime is 1021243187. The next prime is 1021243241. The reversal of 1021243234 is 4323421201.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 1552 + ... + 45220.

It is an arithmetic number, because the mean of its divisors is an integer number (104545980).

Almost surely, 2^1021243234 is an apocalyptic number.

1021243234 is a deficient number, since it is larger than the sum of its proper divisors (651492446).

1021243234 is a wasteful number, since it uses less digits than its factorization.

1021243234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44745.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1021243234 is about 31956.8965013814. The cubic root of 1021243234 is about 1007.0315198439.

Adding to 1021243234 its reverse (4323421201), we get a palindrome (5344664435).

The spelling of 1021243234 in words is "one billion, twenty-one million, two hundred forty-three thousand, two hundred thirty-four".