1021400133442 has 64 divisors (see below), whose sum is σ = 1738881478656. Its totient is φ = 446425943040.

The previous prime is 1021400133433. The next prime is 1021400133517. The reversal of 1021400133442 is 2443310041201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63579103 + ... + 63595165.

It is an arithmetic number, because the mean of its divisors is an integer number (27170023104).

Almost surely, 2^{1021400133442} is an apocalyptic number.

1021400133442 is a deficient number, since it is larger than the sum of its proper divisors (717481345214).

1021400133442 is a wasteful number, since it uses less digits than its factorization.

1021400133442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17155.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1021400133442 its reverse (2443310041201), we get a palindrome (3464710174643).

The spelling of 1021400133442 in words is "one trillion, twenty-one billion, four hundred million, one hundred thirty-three thousand, four hundred forty-two".