1021242430 has 16 divisors (see below), whose sum is σ = 1979639424. Its totient is φ = 377074080.

The previous prime is 1021242427. The next prime is 1021242437. The reversal of 1021242430 is 342421201.

It is a super-2 number, since 2×1021242430² = 2085872201664609800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021242398 and 1021242407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021242437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3927726 + ... + 3927985.

It is an arithmetic number, because the mean of its divisors is an integer number (123727464).

Almost surely, 2^1021242430 is an apocalyptic number.

1021242430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021242430 is a deficient number, since it is larger than the sum of its proper divisors (958396994).

1021242430 is a wasteful number, since it uses less digits than its factorization.

1021242430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7855731.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1021242430 is about 31956.8839219346. The cubic root of 1021242430 is about 1007.0312555734.

Adding to 1021242430 its reverse (342421201), we get a palindrome (1363663631).

The spelling of 1021242430 in words is "one billion, twenty-one million, two hundred forty-two thousand, four hundred thirty".