121301343400 has 96 divisors (see below), whose sum is σ = 285355765080. Its totient is φ = 47949440000.

The previous prime is 121301343377. The next prime is 121301343413. The reversal of 121301343400 is 4343103121.

It can be written as a sum of positive squares in 12 ways, for example, as 4407100996 + 116894242404 = 66386^2 + 341898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11246010 + ... + 11256790.

Almost surely, 2^121301343400 is an apocalyptic number.

121301343400 is a gapful number since it is divisible by the number (10) 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 121301343400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142677882540).

121301343400 is an abundant number, since it is smaller than the sum of its proper divisors (164054421680).

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

121301343400 is a wasteful number, since it uses less digits than its factorization.

121301343400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11455 (or 11446 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121301343400 its reverse (4343103121), we get a palindrome (125644446521).

The spelling of 121301343400 in words is "one hundred twenty-one billion, three hundred one million, three hundred forty-three thousand, four hundred".