131121132331 has 8 divisors (see below), whose sum is σ = 156368058624. Its totient is φ = 107503040040.

The previous prime is 131121132323. The next prime is 131121132341. The reversal of 131121132331 is 133231121131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131121132331 - 2³ = 131121132323 is a prime.

It is a super-2 number, since 2×131121132331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131121132341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407208325 + ... + 407208646.

It is an arithmetic number, because the mean of its divisors is an integer number (19546007328).

Almost surely, 2^131121132331 is an apocalyptic number.

131121132331 is a deficient number, since it is larger than the sum of its proper divisors (25246926293).

131121132331 is an equidigital number, since it uses as much as digits as its factorization.

131121132331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814417001.

The product of its digits is 324, while the sum is 22.

Adding to 131121132331 its reverse (133231121131), we get a palindrome (264352253462).

The spelling of 131121132331 in words is "one hundred thirty-one billion, one hundred twenty-one million, one hundred thirty-two thousand, three hundred thirty-one".