1021042323434 has 16 divisors (see below), whose sum is σ = 1750386480000. Its totient is φ = 437582514384.

The previous prime is 1021042323419. The next prime is 1021042323437. The reversal of 1021042323434 is 4343232401201.

It is a junction number, because it is equal to n+sod(n) for n = 1021042323397 and 1021042323406.

It is not an unprimeable number, because it can be changed into a prime (1021042323437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365192 + ... + 1474940.

It is an arithmetic number, because the mean of its divisors is an integer number (109399155000).

Almost surely, 2^{1021042323434} is an apocalyptic number.

1021042323434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1021042323434 is a deficient number, since it is larger than the sum of its proper divisors (729344156566).

1021042323434 is a wasteful number, since it uses less digits than its factorization.

1021042323434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175477.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1021042323434 its reverse (4343232401201), we get a palindrome (5364274724635).

The spelling of 1021042323434 in words is "one trillion, twenty-one billion, forty-two million, three hundred twenty-three thousand, four hundred thirty-four".