1021342423143 has 16 divisors (see below), whose sum is σ = 1556356518656. Its totient is φ = 583614789120.

The previous prime is 1021342423141. The next prime is 1021342423219. The reversal of 1021342423143 is 3413242431201.

1021342423143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021342423143 - 2¹ = 1021342423141 is a prime.

It is a super-2 number, since 2×1021342423143² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021342423143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021342423141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1058055 + ... + 1778247.

It is an arithmetic number, because the mean of its divisors is an integer number (97272282416).

Almost surely, 2^{1021342423143} is an apocalyptic number.

1021342423143 is a deficient number, since it is larger than the sum of its proper divisors (535014095513).

1021342423143 is an equidigital number, since it uses as much as digits as its factorization.

1021342423143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787734.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 1021342423143 its reverse (3413242431201), we get a palindrome (4434584854344).

The spelling of 1021342423143 in words is "one trillion, twenty-one billion, three hundred forty-two million, four hundred twenty-three thousand, one hundred forty-three".