121409146530 has 96 divisors (see below), whose sum is σ = 361668063744. Its totient is φ = 27680704128.

The previous prime is 121409146493. The next prime is 121409146543. The reversal of 121409146530 is 35641904121.

It is a happy number.

121409146530 is a `hidden beast` number, since 121 + 40 + 9 + 1 + 465 + 30 = 666.

It is a super-2 number, since 2×121409146530² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7399 + ... + 492821.

It is an arithmetic number, because the mean of its divisors is an integer number (3767375664).

Almost surely, 2^121409146530 is an apocalyptic number.

121409146530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121409146530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180834031872).

121409146530 is an abundant number, since it is smaller than the sum of its proper divisors (240258917214).

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

121409146530 is a wasteful number, since it uses less digits than its factorization.

121409146530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485840 (or 485837 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

It can be divided in two parts, 1214091 and 46530, that added together give a palindrome (1260621).

The spelling of 121409146530 in words is "one hundred twenty-one billion, four hundred nine million, one hundred forty-six thousand, five hundred thirty".