121023101231 has 2 divisors, whose sum is σ = 121023101232. Its totient is φ = 121023101230.

The previous prime is 121023101209. The next prime is 121023101317. The reversal of 121023101231 is 132101320121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121023101231 - 2³⁴ = 103843232047 is a prime.

It is a super-2 number, since 2×121023101231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121023101431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60511550615 + 60511550616.

It is an arithmetic number, because the mean of its divisors is an integer number (60511550616).

Almost surely, 2^121023101231 is an apocalyptic number.

121023101231 is a deficient number, since it is larger than the sum of its proper divisors (1).

121023101231 is an equidigital number, since it uses as much as digits as its factorization.

121023101231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121023101231 its reverse (132101320121), we get a palindrome (253124421352).

The spelling of 121023101231 in words is "one hundred twenty-one billion, twenty-three million, one hundred one thousand, two hundred thirty-one".