131121230514146 has 16 divisors (see below), whose sum is σ = 196912821249144. Its totient is φ = 65483624578944.

The previous prime is 131121230514073. The next prime is 131121230514161. The reversal of 131121230514146 is 641415032121131.

It can be written as a sum of positive squares in 4 ways, for example, as 116872077726121 + 14249152788025 = 10810739^2 + 3774805^2 .

It is a super-2 number, since 2×131121230514146² (a number of 29 digits) contains 22 as substring.

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, 362661116 + ... + 363022488.

Almost surely, 2^{131121230514146} is an apocalyptic number.

131121230514146 is a deficient number, since it is larger than the sum of its proper divisors (65791590734998).

131121230514146 is a wasteful number, since it uses less digits than its factorization.

131121230514146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573925.

The product of its (nonzero) digits is 17280, while the sum is 35.

Adding to 131121230514146 its reverse (641415032121131), we get a palindrome (772536262635277).

The spelling of 131121230514146 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, two hundred thirty million, five hundred fourteen thousand, one hundred forty-six".