121230452120 has 32 divisors (see below), whose sum is σ = 279111975120. Its totient is φ = 47364455040.

The previous prime is 121230452069. The next prime is 121230452137. The reversal of 121230452120 is 21254032121.

It is a super-2 number, since 2×121230452120² (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, 35239691 + ... + 35243130.

Almost surely, 2^121230452120 is an apocalyptic number.

121230452120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121230452120 is an abundant number, since it is smaller than the sum of its proper divisors (157881523000).

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

121230452120 is a wasteful number, since it uses less digits than its factorization.

121230452120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70482875 (or 70482871 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 121230452120 its reverse (21254032121), we get a palindrome (142484484241).

The spelling of 121230452120 in words is "one hundred twenty-one billion, two hundred thirty million, four hundred fifty-two thousand, one hundred twenty".