121203030321331 has 16 divisors (see below), whose sum is σ = 140302903968000. Its totient is φ = 102558000490848.

The previous prime is 121203030321311. The next prime is 121203030321407. The reversal of 121203030321331 is 133123030302121.

It is not a de Polignac number, because 121203030321331 - 2⁵ = 121203030321299 is a prime.

It is a super-2 number, since 2×121203030321331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121203030321296 and 121203030321305.

It is not an unprimeable number, because it can be changed into a prime (121203030321311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356290621 + ... + 356630638.

It is an arithmetic number, because the mean of its divisors is an integer number (8768931498000).

Almost surely, 2^{121203030321331} is an apocalyptic number.

121203030321331 is a deficient number, since it is larger than the sum of its proper divisors (19099873646669).

121203030321331 is a wasteful number, since it uses less digits than its factorization.

121203030321331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712921578.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 121203030321331 its reverse (133123030302121), we get a palindrome (254326060623452).

The spelling of 121203030321331 in words is "one hundred twenty-one trillion, two hundred three billion, thirty million, three hundred twenty-one thousand, three hundred thirty-one".