131232140421402 has 128 divisors (see below), whose sum is σ = 271379527630848. Its totient is φ = 42292488268800.

The previous prime is 131232140421377. The next prime is 131232140421461. The reversal of 131232140421402 is 204124041232131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131232140421402.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1764950658 + ... + 1765025010.

It is an arithmetic number, because the mean of its divisors is an integer number (2120152559616).

Almost surely, 2^{131232140421402} is an apocalyptic number.

131232140421402 is an abundant number, since it is smaller than the sum of its proper divisors (140147387209446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131232140421402 is a wasteful number, since it uses less digits than its factorization.

131232140421402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74924.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 131232140421402 its reverse (204124041232131), we get a palindrome (335356181653533).

The spelling of 131232140421402 in words is "one hundred thirty-one trillion, two hundred thirty-two billion, one hundred forty million, four hundred twenty-one thousand, four hundred two".