131323333223220 has 96 divisors (see below), whose sum is σ = 384045508804608. Its totient is φ = 33466149796992.

The previous prime is 131323333223143. The next prime is 131323333223221. The reversal of 131323333223220 is 22322333323131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131323333223221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42272634 + ... + 45272753.

It is an arithmetic number, because the mean of its divisors is an integer number (4000474050048).

Almost surely, 2^{131323333223220} is an apocalyptic number.

131323333223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131323333223220 is an abundant number, since it is smaller than the sum of its proper divisors (252722175581388).

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

131323333223220 is a wasteful number, since it uses less digits than its factorization.

131323333223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87546509 (or 87546507 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 33.

Adding to 131323333223220 its reverse (22322333323131), we get a palindrome (153645666546351).

The spelling of 131323333223220 in words is "one hundred thirty-one trillion, three hundred twenty-three billion, three hundred thirty-three million, two hundred twenty-three thousand, two hundred twenty".