121333431001 has 8 divisors (see below), whose sum is σ = 122579906760. Its totient is φ = 120089985792.

The previous prime is 121333430947. The next prime is 121333431017. The reversal of 121333431001 is 100134333121.

It can be written as a sum of positive squares in 4 ways, for example, as 3822025 + 121329608976 = 1955^2 + 348324^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121333431001 - 2¹⁵ = 121333398233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121333431031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677110 + ... + 837343.

It is an arithmetic number, because the mean of its divisors is an integer number (15322488345).

Almost surely, 2^121333431001 is an apocalyptic number.

It is an amenable number.

121333431001 is a deficient number, since it is larger than the sum of its proper divisors (1246475759).

121333431001 is a wasteful number, since it uses less digits than its factorization.

121333431001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515275.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121333431001 its reverse (100134333121), we get a palindrome (221467764122).

The spelling of 121333431001 in words is "one hundred twenty-one billion, three hundred thirty-three million, four hundred thirty-one thousand, one".