131233402122240 has 208 divisors, whose sum is σ = 458067955533696. Its totient is φ = 31814157926400.

The previous prime is 131233402122227. The next prime is 131233402122253. The reversal of 131233402122240 is 42221204332131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131233402122227) and next prime (131233402122253).

It is a super-2 number, since 2×131233402122240² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 131233402122198 and 131233402122207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96413266 + ... + 97764945.

Almost surely, 2^{131233402122240} is an apocalyptic number.

131233402122240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131233402122240 is an abundant number, since it is smaller than the sum of its proper divisors (326834553411456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131233402122240 is a wasteful number, since it uses less digits than its factorization.

131233402122240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194178254 (or 194178232 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 131233402122240 its reverse (42221204332131), we get a palindrome (173454606454371).

The spelling of 131233402122240 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, four hundred two million, one hundred twenty-two thousand, two hundred forty".