1021142330 has 32 divisors (see below), whose sum is σ = 1981736064. Its totient is φ = 376600896.

The previous prime is 1021142329. The next prime is 1021142347. The reversal of 1021142330 is 332411201.

It is a junction number, because it is equal to n+sod(n) for n = 1021142299 and 1021142308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121649 + ... + 129771.

It is an arithmetic number, because the mean of its divisors is an integer number (61929252).

Almost surely, 2^1021142330 is an apocalyptic number.

1021142330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021142330 is a deficient number, since it is larger than the sum of its proper divisors (960593734).

1021142330 is a wasteful number, since it uses less digits than its factorization.

1021142330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9110.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1021142330 is about 31955.3177108287. The cubic root of 1021142330 is about 1006.9983521479.

Adding to 1021142330 its reverse (332411201), we get a palindrome (1353553531).

The spelling of 1021142330 in words is "one billion, twenty-one million, one hundred forty-two thousand, three hundred thirty".