121203312032231 has 32 divisors (see below), whose sum is σ = 142990246728000. Its totient is φ = 101283145850880.

The previous prime is 121203312032197. The next prime is 121203312032251. The reversal of 121203312032231 is 132230213302121.

It is a cyclic number.

It is not a de Polignac number, because 121203312032231 - 2¹⁴ = 121203312015847 is a prime.

It is a super-2 number, since 2×121203312032231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121203312032231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121203312032251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30827045 + ... + 34535681.

It is an arithmetic number, because the mean of its divisors is an integer number (4468445210250).

Almost surely, 2^{121203312032231} is an apocalyptic number.

121203312032231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121203312032231 is a deficient number, since it is larger than the sum of its proper divisors (21786934695769).

121203312032231 is a wasteful number, since it uses less digits than its factorization.

121203312032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709619.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 121203312032231 its reverse (132230213302121), we get a palindrome (253433525334352).

The spelling of 121203312032231 in words is "one hundred twenty-one trillion, two hundred three billion, three hundred twelve million, thirty-two thousand, two hundred thirty-one".