121024423420 has 24 divisors (see below), whose sum is σ = 262915128000. Its totient is φ = 46740466752.

The previous prime is 121024423409. The next prime is 121024423463. The reversal of 121024423420 is 24324420121.

It is a super-2 number, since 2×121024423420² (a number of 23 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, 104330820 + ... + 104331979.

It is an arithmetic number, because the mean of its divisors is an integer number (10954797000).

Almost surely, 2^121024423420 is an apocalyptic number.

121024423420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121024423420 is an abundant number, since it is smaller than the sum of its proper divisors (141890704580).

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

121024423420 is a wasteful number, since it uses less digits than its factorization.

121024423420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208662837 (or 208662835 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 121024423420 its reverse (24324420121), we get a palindrome (145348843541).

The spelling of 121024423420 in words is "one hundred twenty-one billion, twenty-four million, four hundred twenty-three thousand, four hundred twenty".