121012021023 has 8 divisors (see below), whose sum is σ = 162282017328. Its totient is φ = 80208352704.

The previous prime is 121012021007. The next prime is 121012021027. The reversal of 121012021023 is 320120210121.

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

It is not a de Polignac number, because 121012021023 - 2⁴ = 121012021007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121012020993 and 121012021011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012021027) 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, 116581390 + ... + 116582427.

It is an arithmetic number, because the mean of its divisors is an integer number (20285252166).

Almost surely, 2^121012021023 is an apocalyptic number.

121012021023 is a deficient number, since it is larger than the sum of its proper divisors (41269996305).

121012021023 is a wasteful number, since it uses less digits than its factorization.

121012021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233163993.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121012021023 its reverse (320120210121), we get a palindrome (441132231144).

The spelling of 121012021023 in words is "one hundred twenty-one billion, twelve million, twenty-one thousand, twenty-three".