1021334142 has 16 divisors (see below), whose sum is σ = 2061409680. Its totient is φ = 337321152.

The previous prime is 1021334117. The next prime is 1021334183. The reversal of 1021334142 is 2414331201.

It is a super-2 number, since 2×1021334142² = 2086246859229752328, which 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, 780183 + ... + 781490.

It is an arithmetic number, because the mean of its divisors is an integer number (128838105).

Almost surely, 2^1021334142 is an apocalyptic number.

1021334142 is an abundant number, since it is smaller than the sum of its proper divisors (1040075538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021334142 is a wasteful number, since it uses less digits than its factorization.

1021334142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561787.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1021334142 is about 31958.3188231171. The cubic root of 1021334142 is about 1007.0613999293.

Adding to 1021334142 its reverse (2414331201), we get a palindrome (3435665343).

The spelling of 1021334142 in words is "one billion, twenty-one million, three hundred thirty-four thousand, one hundred forty-two".