121010261023 has 2 divisors, whose sum is σ = 121010261024. Its totient is φ = 121010261022.

The previous prime is 121010261011. The next prime is 121010261041. The reversal of 121010261023 is 320162010121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121010261023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121010261063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505130511 + 60505130512.

It is an arithmetic number, because the mean of its divisors is an integer number (60505130512).

Almost surely, 2^121010261023 is an apocalyptic number.

121010261023 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010261023 is an equidigital number, since it uses as much as digits as its factorization.

121010261023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121010261023 its reverse (320162010121), we get a palindrome (441172271144).

The spelling of 121010261023 in words is "one hundred twenty-one billion, ten million, two hundred sixty-one thousand, twenty-three".