131045402213450 has 12 divisors (see below), whose sum is σ = 243744448117110. Its totient is φ = 52418160885360.

The previous prime is 131045402213447. The next prime is 131045402213459. The reversal of 131045402213450 is 54312204540131.

It can be written as a sum of positive squares in 3 ways, for example, as 107161274608129 + 23884127605321 = 10351873^2 + 4887139^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131045402213450.

It is not an unprimeable number, because it can be changed into a prime (131045402213459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1310454022085 + ... + 1310454022184.

Almost surely, 2^{131045402213450} is an apocalyptic number.

131045402213450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131045402213450 is a deficient number, since it is larger than the sum of its proper divisors (112699045903660).

131045402213450 is a wasteful number, since it uses less digits than its factorization.

131045402213450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620908044281 (or 2620908044276 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 131045402213450 its reverse (54312204540131), we get a palindrome (185357606753581).

The spelling of 131045402213450 in words is "one hundred thirty-one trillion, forty-five billion, four hundred two million, two hundred thirteen thousand, four hundred fifty".