121031311203023 has 8 divisors (see below), whose sum is σ = 130344702490800. Its totient is φ = 111718389976128.

The previous prime is 121031311202999. The next prime is 121031311203031. The reversal of 121031311203023 is 320302113130121.

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

It is not a de Polignac number, because 121031311203023 - 2²² = 121031307008719 is a prime.

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 121031311203023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121031311283023) 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, 116980358 + ... + 118010451.

It is an arithmetic number, because the mean of its divisors is an integer number (16293087811350).

Almost surely, 2^{121031311203023} is an apocalyptic number.

121031311203023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121031311203023 is a deficient number, since it is larger than the sum of its proper divisors (9313391287777).

121031311203023 is a wasteful number, since it uses less digits than its factorization.

121031311203023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235030441.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 121031311203023 its reverse (320302113130121), we get a palindrome (441333424333144).

The spelling of 121031311203023 in words is "one hundred twenty-one trillion, thirty-one billion, three hundred eleven million, two hundred three thousand, twenty-three".