131111441451 has 12 divisors (see below), whose sum is σ = 196397385912. Its totient is φ = 87407627472.

The previous prime is 131111441441. The next prime is 131111441467. The reversal of 131111441451 is 154144111131.

131111441451 is a `hidden beast` number, since 131 + 1 + 114 + 414 + 5 + 1 = 666.

It is not a de Polignac number, because 131111441451 - 2¹⁹ = 131110917163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (131111441411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269776386 + ... + 269776871.

It is an arithmetic number, because the mean of its divisors is an integer number (16366448826).

Almost surely, 2^131111441451 is an apocalyptic number.

131111441451 is a deficient number, since it is larger than the sum of its proper divisors (65285944461).

131111441451 is an frugal number, since it uses more digits than its factorization.

131111441451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539553272 (or 539553260 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

Adding to 131111441451 its reverse (154144111131), we get a palindrome (285255552582).

The spelling of 131111441451 in words is "one hundred thirty-one billion, one hundred eleven million, four hundred forty-one thousand, four hundred fifty-one".