121121031007 has 2 divisors, whose sum is σ = 121121031008. Its totient is φ = 121121031006.

The previous prime is 121121031001. The next prime is 121121031041. The reversal of 121121031007 is 700130121121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121121031007 - 2³ = 121121030999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121121031001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560515503 + 60560515504.

It is an arithmetic number, because the mean of its divisors is an integer number (60560515504).

Almost surely, 2^121121031007 is an apocalyptic number.

121121031007 is a deficient number, since it is larger than the sum of its proper divisors (1).

121121031007 is an equidigital number, since it uses as much as digits as its factorization.

121121031007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 19.

Adding to 121121031007 its reverse (700130121121), we get a palindrome (821251152128).

The spelling of 121121031007 in words is "one hundred twenty-one billion, one hundred twenty-one million, thirty-one thousand, seven".