4234121491 has 2 divisors, whose sum is σ = 4234121492. Its totient is φ = 4234121490.

The previous prime is 4234121467. The next prime is 4234121509. The reversal of 4234121491 is 1941214324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4234121491 - 2⁷ = 4234121363 is a prime.

It is not a weakly prime, because it can be changed into another prime (4234121431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2117060745 + 2117060746.

It is an arithmetic number, because the mean of its divisors is an integer number (2117060746).

Almost surely, 2^4234121491 is an apocalyptic number.

4234121491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4234121491 is an equidigital number, since it uses as much as digits as its factorization.

4234121491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 4234121491 is about 65070.1274856597. The cubic root of 4234121491 is about 1617.7861202191.

The spelling of 4234121491 in words is "four billion, two hundred thirty-four million, one hundred twenty-one thousand, four hundred ninety-one".