121434213031 has 2 divisors, whose sum is σ = 121434213032. Its totient is φ = 121434213030.

The previous prime is 121434213001. The next prime is 121434213037. The reversal of 121434213031 is 130312434121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121434213031 - 2⁷ = 121434212903 is a prime.

It is a super-2 number, since 2×121434213031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121434212987 and 121434213005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121434213037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60717106515 + 60717106516.

It is an arithmetic number, because the mean of its divisors is an integer number (60717106516).

Almost surely, 2^121434213031 is an apocalyptic number.

121434213031 is a deficient number, since it is larger than the sum of its proper divisors (1).

121434213031 is an equidigital number, since it uses as much as digits as its factorization.

121434213031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121434213031 its reverse (130312434121), we get a palindrome (251746647152).

The spelling of 121434213031 in words is "one hundred twenty-one billion, four hundred thirty-four million, two hundred thirteen thousand, thirty-one".