121311223230 has 64 divisors (see below), whose sum is σ = 303871772160. Its totient is φ = 30936402816.

The previous prime is 121311223223. The next prime is 121311223247. The reversal of 121311223230 is 32322113121.

It is a super-3 number, since 3×121311223230³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121311223197 and 121311223206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3656356 + ... + 3689384.

It is an arithmetic number, because the mean of its divisors is an integer number (4747996440).

Almost surely, 2^121311223230 is an apocalyptic number.

121311223230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121311223230 is an abundant number, since it is smaller than the sum of its proper divisors (182560548930).

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

121311223230 is a wasteful number, since it uses less digits than its factorization.

121311223230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38385.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121311223230 its reverse (32322113121), we get a palindrome (153633336351).

The spelling of 121311223230 in words is "one hundred twenty-one billion, three hundred eleven million, two hundred twenty-three thousand, two hundred thirty".