121031111020233 has 16 divisors (see below), whose sum is σ = 168477421326336. Its totient is φ = 77139700294800.

The previous prime is 121031111020189. The next prime is 121031111020241. The reversal of 121031111020233 is 332020111130121.

It is not a de Polignac number, because 121031111020233 - 2¹⁴ = 121031111003849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121031111020243) 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, 449397435 + ... + 449666672.

It is an arithmetic number, because the mean of its divisors is an integer number (10529838832896).

Almost surely, 2^{121031111020233} is an apocalyptic number.

It is an amenable number.

121031111020233 is a deficient number, since it is larger than the sum of its proper divisors (47446310306103).

121031111020233 is a wasteful number, since it uses less digits than its factorization.

121031111020233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899066084.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 121031111020233 its reverse (332020111130121), we get a palindrome (453051222150354).

The spelling of 121031111020233 in words is "one hundred twenty-one trillion, thirty-one billion, one hundred eleven million, twenty thousand, two hundred thirty-three".