121002021122023 has 4 divisors (see below), whose sum is σ = 121002853176648. Its totient is φ = 121001189067400.

The previous prime is 121002021122011. The next prime is 121002021122029. The reversal of 121002021122023 is 320221120200121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121002021122023 is a prime.

It is a super-2 number, since 2×121002021122023² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002021122029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415809136 + ... + 416100037.

It is an arithmetic number, because the mean of its divisors is an integer number (30250713294162).

Almost surely, 2^{121002021122023} is an apocalyptic number.

121002021122023 is a deficient number, since it is larger than the sum of its proper divisors (832054625).

121002021122023 is an equidigital number, since it uses as much as digits as its factorization.

121002021122023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832054624.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121002021122023 its reverse (320221120200121), we get a palindrome (441223141322144).

The spelling of 121002021122023 in words is "one hundred twenty-one trillion, two billion, twenty-one million, one hundred twenty-two thousand, twenty-three".