131034421 has 4 divisors (see below), whose sum is σ = 149753632. Its totient is φ = 112315212.

The previous prime is 131034389. The next prime is 131034451. The reversal of 131034421 is 124430131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131034421 - 2⁵ = 131034389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131034451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9359595 + ... + 9359608.

It is an arithmetic number, because the mean of its divisors is an integer number (37438408).

Almost surely, 2^131034421 is an apocalyptic number.

It is an amenable number.

131034421 is a deficient number, since it is larger than the sum of its proper divisors (18719211).

131034421 is an equidigital number, since it uses as much as digits as its factorization.

131034421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18719210.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 131034421 is about 11447.0267318636. The cubic root of 131034421 is about 507.9197862994.

Adding to 131034421 its reverse (124430131), we get a palindrome (255464552).

The spelling of 131034421 in words is "one hundred thirty-one million, thirty-four thousand, four hundred twenty-one".