131423420413442 has 16 divisors (see below), whose sum is σ = 197903170581120. Its totient is φ = 65455699411968.

The previous prime is 131423420413427. The next prime is 131423420413477. The reversal of 131423420413442 is 244314024324131.

It is a junction number, because it is equal to n+sod(n) for n = 131423420413396 and 131423420413405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129726059 + ... + 130735217.

It is an arithmetic number, because the mean of its divisors is an integer number (12368948161320).

Almost surely, 2^{131423420413442} is an apocalyptic number.

131423420413442 is a deficient number, since it is larger than the sum of its proper divisors (66479750167678).

131423420413442 is a wasteful number, since it uses less digits than its factorization.

131423420413442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262785.

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 131423420413442 its reverse (244314024324131), we get a palindrome (375737444737573).

The spelling of 131423420413442 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, four hundred twenty million, four hundred thirteen thousand, four hundred forty-two".