121011023101 has 2 divisors, whose sum is σ = 121011023102. Its totient is φ = 121011023100.

The previous prime is 121011023069. The next prime is 121011023131. The reversal of 121011023101 is 101320110121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66313975225 + 54697047876 = 257515^2 + 233874^2 .

It is a cyclic number.

It is not a de Polignac number, because 121011023101 - 2⁵ = 121011023069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121011023131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505511550 + 60505511551.

It is an arithmetic number, because the mean of its divisors is an integer number (60505511551).

Almost surely, 2^121011023101 is an apocalyptic number.

It is an amenable number.

121011023101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011023101 is an equidigital number, since it uses as much as digits as its factorization.

121011023101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121011023101 its reverse (101320110121), we get a palindrome (222331133222).

The spelling of 121011023101 in words is "one hundred twenty-one billion, eleven million, twenty-three thousand, one hundred one".