131220424029 has 8 divisors (see below), whose sum is σ = 174963449952. Its totient is φ = 87478840400.

The previous prime is 131220424001. The next prime is 131220424079. The reversal of 131220424029 is 920424022131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131220424029 - 2²⁰ = 131219375453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131220423987 and 131220424005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131220424079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126594 + ... + 527699.

It is an arithmetic number, because the mean of its divisors is an integer number (21870431244).

Almost surely, 2^131220424029 is an apocalyptic number.

It is an amenable number.

131220424029 is a deficient number, since it is larger than the sum of its proper divisors (43743025923).

131220424029 is an equidigital number, since it uses as much as digits as its factorization.

131220424029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721147.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 131220424029 in words is "one hundred thirty-one billion, two hundred twenty million, four hundred twenty-four thousand, twenty-nine".