121123123313020 has 24 divisors (see below), whose sum is σ = 265417626739104. Its totient is φ = 46342760223936.

The previous prime is 121123123312979. The next prime is 121123123313047. The reversal of 121123123313020 is 20313321321121.

It is a super-2 number, since 2×121123123313020² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131655568359 + ... + 131655569278.

It is an arithmetic number, because the mean of its divisors is an integer number (11059067780796).

Almost surely, 2^{121123123313020} is an apocalyptic number.

121123123313020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121123123313020 is an abundant number, since it is smaller than the sum of its proper divisors (144294503426084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121123123313020 is a wasteful number, since it uses less digits than its factorization.

121123123313020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263311137669 (or 263311137667 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121123123313020 its reverse (20313321321121), we get a palindrome (141436444634141).

The spelling of 121123123313020 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, one hundred twenty-three million, three hundred thirteen thousand, twenty".