121444404031 has 2 divisors, whose sum is σ = 121444404032. Its totient is φ = 121444404030.

The previous prime is 121444403963. The next prime is 121444404043. The reversal of 121444404031 is 130404444121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121444404031 - 2³¹ = 119296920383 is a prime.

It is a super-2 number, since 2×121444404031² (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 (121444404071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60722202015 + 60722202016.

It is an arithmetic number, because the mean of its divisors is an integer number (60722202016).

Almost surely, 2^121444404031 is an apocalyptic number.

121444404031 is a deficient number, since it is larger than the sum of its proper divisors (1).

121444404031 is an equidigital number, since it uses as much as digits as its factorization.

121444404031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 121444404031 its reverse (130404444121), we get a palindrome (251848848152).

The spelling of 121444404031 in words is "one hundred twenty-one billion, four hundred forty-four million, four hundred four thousand, thirty-one".