131143134323450 has 24 divisors (see below), whose sum is σ = 256764452466720. Its totient is φ = 49696345638000.

The previous prime is 131143134323449. The next prime is 131143134323471. The reversal of 131143134323450 is 54323431341131.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69022701326 + ... + 69022703225.

It is an arithmetic number, because the mean of its divisors is an integer number (10698518852780).

Almost surely, 2^{131143134323450} is an apocalyptic number.

131143134323450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131143134323450 is a deficient number, since it is larger than the sum of its proper divisors (125621318143270).

131143134323450 is a wasteful number, since it uses less digits than its factorization.

131143134323450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138045404582 (or 138045404577 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 131143134323450 its reverse (54323431341131), we get a palindrome (185466565664581).

The spelling of 131143134323450 in words is "one hundred thirty-one trillion, one hundred forty-three billion, one hundred thirty-four million, three hundred twenty-three thousand, four hundred fifty".