121321433010 has 64 divisors (see below), whose sum is σ = 303060113280. Its totient is φ = 31045109760.

The previous prime is 121321432997. The next prime is 121321433021. The reversal of 121321433010 is 10334123121.

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, 285951 + ... + 569570.

It is an arithmetic number, because the mean of its divisors is an integer number (4735314270).

Almost surely, 2^121321433010 is an apocalyptic number.

121321433010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121321433010 is an abundant number, since it is smaller than the sum of its proper divisors (181738680270).

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

121321433010 is a wasteful number, since it uses less digits than its factorization.

121321433010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855723.

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

Adding to 121321433010 its reverse (10334123121), we get a palindrome (131655556131).

The spelling of 121321433010 in words is "one hundred twenty-one billion, three hundred twenty-one million, four hundred thirty-three thousand, ten".