1021342423344 has 40 divisors (see below), whose sum is σ = 2642365304880. Its totient is φ = 339944587008.

The previous prime is 1021342423319. The next prime is 1021342423357. The reversal of 1021342423344 is 4433242431201.

It is a super-2 number, since 2×1021342423344² (a number of 25 digits) contains 22 as substring.

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, 15682399 + ... + 15747390.

It is an arithmetic number, because the mean of its divisors is an integer number (66059132622).

Almost surely, 2^{1021342423344} is an apocalyptic number.

It is an amenable number.

1021342423344 is an abundant number, since it is smaller than the sum of its proper divisors (1621022881536).

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

1021342423344 is a wasteful number, since it uses less digits than its factorization.

1021342423344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31430477 (or 31430471 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 1021342423344 its reverse (4433242431201), we get a palindrome (5454584854545).

The spelling of 1021342423344 in words is "one trillion, twenty-one billion, three hundred forty-two million, four hundred twenty-three thousand, three hundred forty-four".