121010451432 has 192 divisors, whose sum is σ = 350434459200. Its totient is φ = 34520048640.

The previous prime is 121010451427. The next prime is 121010451437. The reversal of 121010451432 is 234154010121.

It is an interprime number because it is at equal distance from previous prime (121010451427) and next prime (121010451437).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (121010451437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13090332 + ... + 13099572.

It is an arithmetic number, because the mean of its divisors is an integer number (1825179475).

Almost surely, 2^121010451432 is an apocalyptic number.

121010451432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121010451432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175217229600).

121010451432 is an abundant number, since it is smaller than the sum of its proper divisors (229424007768).

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

121010451432 is a wasteful number, since it uses less digits than its factorization.

121010451432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9376 (or 9325 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 121010451432 its reverse (234154010121), we get a palindrome (355164461553).

The spelling of 121010451432 in words is "one hundred twenty-one billion, ten million, four hundred fifty-one thousand, four hundred thirty-two".