123011021032021 has 8 divisors (see below), whose sum is σ = 123227017344288. Its totient is φ = 122795026698000.

The previous prime is 123011021031967. The next prime is 123011021032027. The reversal of 123011021032021 is 120230120110321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123011021032021 - 2¹⁹ = 123011020507733 is a prime.

It is a super-2 number, since 2×123011021032021² (a number of 29 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 123011021032021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123011021032027) 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, 184866606 + ... + 185530816.

It is an arithmetic number, because the mean of its divisors is an integer number (15403377168036).

Almost surely, 2^{123011021032021} is an apocalyptic number.

It is an amenable number.

123011021032021 is a deficient number, since it is larger than the sum of its proper divisors (215996312267).

123011021032021 is an equidigital number, since it uses as much as digits as its factorization.

123011021032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989123.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 123011021032021 its reverse (120230120110321), we get a palindrome (243241141142342).

The spelling of 123011021032021 in words is "one hundred twenty-three trillion, eleven billion, twenty-one million, thirty-two thousand, twenty-one".