1042320422121 has 16 divisors (see below), whose sum is σ = 1516324639680. Its totient is φ = 631616760320.

The previous prime is 1042320422111. The next prime is 1042320422123. The reversal of 1042320422121 is 1212240232401.

It is a cyclic number.

It is not a de Polignac number, because 1042320422121 - 2⁶ = 1042320422057 is a prime.

It is a super-2 number, since 2×1042320422121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1042320422091 and 1042320422100.

It is not an unprimeable number, because it can be changed into a prime (1042320422123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2085756 + ... + 2536733.

It is an arithmetic number, because the mean of its divisors is an integer number (94770289980).

Almost surely, 2^{1042320422121} is an apocalyptic number.

1042320422121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1042320422121 is a deficient number, since it is larger than the sum of its proper divisors (474004217559).

1042320422121 is a wasteful number, since it uses less digits than its factorization.

1042320422121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629336.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1042320422121 its reverse (1212240232401), we get a palindrome (2254560654522).

The spelling of 1042320422121 in words is "one trillion, forty-two billion, three hundred twenty million, four hundred twenty-two thousand, one hundred twenty-one".