121012100021023 has 2 divisors, whose sum is σ = 121012100021024. Its totient is φ = 121012100021022.

The previous prime is 121012100020969. The next prime is 121012100021027. The reversal of 121012100021023 is 320120001210121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121012100021023 - 2¹³ = 121012100012831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121012100020988 and 121012100021006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121012100021027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506050010511 + 60506050010512.

It is an arithmetic number, because the mean of its divisors is an integer number (60506050010512).

Almost surely, 2^{121012100021023} is an apocalyptic number.

121012100021023 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012100021023 is an equidigital number, since it uses as much as digits as its factorization.

121012100021023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121012100021023 its reverse (320120001210121), we get a palindrome (441132101231144).

The spelling of 121012100021023 in words is "one hundred twenty-one trillion, twelve billion, one hundred million, twenty-one thousand, twenty-three".