121023145105504 has 24 divisors (see below), whose sum is σ = 238761737242560. Its totient is φ = 60385243583616.

The previous prime is 121023145105469. The next prime is 121023145105663. The reversal of 121023145105504 is 405501541320121.

121023145105504 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×121023145105504³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121023145105504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3947764719 + ... + 3947795374.

It is an arithmetic number, because the mean of its divisors is an integer number (9948405718440).

Almost surely, 2^{121023145105504} is an apocalyptic number.

It is an amenable number.

121023145105504 is a deficient number, since it is larger than the sum of its proper divisors (117738592137056).

121023145105504 is an equidigital number, since it uses as much as digits as its factorization.

121023145105504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7895560582 (or 7895560574 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 121023145105504 its reverse (405501541320121), we get a palindrome (526524686425625).

The spelling of 121023145105504 in words is "one hundred twenty-one trillion, twenty-three billion, one hundred forty-five million, one hundred five thousand, five hundred four".