121431214043 has 2 divisors, whose sum is σ = 121431214044. Its totient is φ = 121431214042.

The previous prime is 121431214039. The next prime is 121431214049. The reversal of 121431214043 is 340412134121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121431214043 - 2² = 121431214039 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (121431214049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60715607021 + 60715607022.

It is an arithmetic number, because the mean of its divisors is an integer number (60715607022).

Almost surely, 2^121431214043 is an apocalyptic number.

121431214043 is a deficient number, since it is larger than the sum of its proper divisors (1).

121431214043 is an equidigital number, since it uses as much as digits as its factorization.

121431214043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 121431214043 its reverse (340412134121), we get a palindrome (461843348164).

The spelling of 121431214043 in words is "one hundred twenty-one billion, four hundred thirty-one million, two hundred fourteen thousand, forty-three".