1021330561142 has 16 divisors (see below), whose sum is σ = 1537406142912. Its totient is φ = 508864778760.

The previous prime is 1021330561109. The next prime is 1021330561193. The reversal of 1021330561142 is 2411650331201.

It is a super-2 number, since 2×1021330561142² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 35084 + ... + 1429647.

It is an arithmetic number, because the mean of its divisors is an integer number (96087883932).

Almost surely, 2^{1021330561142} is an apocalyptic number.

1021330561142 is a deficient number, since it is larger than the sum of its proper divisors (516075581770).

1021330561142 is a wasteful number, since it uses less digits than its factorization.

1021330561142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465963.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 1021330561142 its reverse (2411650331201), we get a palindrome (3432980892343).

The spelling of 1021330561142 in words is "one trillion, twenty-one billion, three hundred thirty million, five hundred sixty-one thousand, one hundred forty-two".