1021020042323 has 32 divisors (see below), whose sum is σ = 1071577382400. Its totient is φ = 971960926464.

The previous prime is 1021020042277. The next prime is 1021020042331. The reversal of 1021020042323 is 3232400201201.

It is a cyclic number.

It is not a de Polignac number, because 1021020042323 - 2²⁶ = 1020952933459 is a prime.

It is a super-2 number, since 2×1021020042323² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021020042295 and 1021020042304.

It is not an unprimeable number, because it can be changed into a prime (1021020042223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124830248 + ... + 124838426.

It is an arithmetic number, because the mean of its divisors is an integer number (33486793200).

Almost surely, 2^{1021020042323} is an apocalyptic number.

1021020042323 is a deficient number, since it is larger than the sum of its proper divisors (50557340077).

1021020042323 is a wasteful number, since it uses less digits than its factorization.

1021020042323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8699.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1021020042323 its reverse (3232400201201), we get a palindrome (4253420243524).

The spelling of 1021020042323 in words is "one trillion, twenty-one billion, twenty million, forty-two thousand, three hundred twenty-three".