121023031 has 2 divisors, whose sum is σ = 121023032. Its totient is φ = 121023030.

The previous prime is 121023013. The next prime is 121023037. The reversal of 121023031 is 130320121.

Together with previous prime (121023013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121023031 - 2²¹ = 118925879 is a prime.

It is a super-2 number, since 2×121023031² = 29293148064853922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121023037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60511515 + 60511516.

It is an arithmetic number, because the mean of its divisors is an integer number (60511516).

Almost surely, 2^121023031 is an apocalyptic number.

121023031 is a deficient number, since it is larger than the sum of its proper divisors (1).

121023031 is an equidigital number, since it uses as much as digits as its factorization.

121023031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121023031 is about 11001.0468138264. The cubic root of 121023031 is about 494.6401234194.

Adding to 121023031 its reverse (130320121), we get a palindrome (251343152).

The spelling of 121023031 in words is "one hundred twenty-one million, twenty-three thousand, thirty-one".