131222434154 has 8 divisors (see below), whose sum is σ = 224952744288. Its totient is φ = 56238186060.

The previous prime is 131222434139. The next prime is 131222434159. The reversal of 131222434154 is 451434222131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 131222434154.

It is not an unprimeable number, because it can be changed into a prime (131222434159) 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, 4686515492 + ... + 4686515519.

It is an arithmetic number, because the mean of its divisors is an integer number (28119093036).

Almost surely, 2^131222434154 is an apocalyptic number.

131222434154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131222434154 is a deficient number, since it is larger than the sum of its proper divisors (93730310134).

131222434154 is an equidigital number, since it uses as much as digits as its factorization.

131222434154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9373031020.

The product of its digits is 23040, while the sum is 32.

Adding to 131222434154 its reverse (451434222131), we get a palindrome (582656656285).

The spelling of 131222434154 in words is "one hundred thirty-one billion, two hundred twenty-two million, four hundred thirty-four thousand, one hundred fifty-four".