131121303030 has 24 divisors (see below), whose sum is σ = 340915388112. Its totient is φ = 34965680784.

The previous prime is 131121303029. The next prime is 131121303119. The reversal of 131121303030 is 30303121131.

It is a happy number.

131121303030 is a `hidden beast` number, since 1 + 311 + 21 + 30 + 303 + 0 = 666.

It is a super-2 number, since 2×131121303030² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 131121302994 and 131121303012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 728451594 + ... + 728451773.

It is an arithmetic number, because the mean of its divisors is an integer number (14204807838).

Almost surely, 2^131121303030 is an apocalyptic number.

131121303030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131121303030 is an abundant number, since it is smaller than the sum of its proper divisors (209794085082).

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

131121303030 is a wasteful number, since it uses less digits than its factorization.

131121303030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456903380 (or 1456903377 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 131121303030 its reverse (30303121131), we get a palindrome (161424424161).

The spelling of 131121303030 in words is "one hundred thirty-one billion, one hundred twenty-one million, three hundred three thousand, thirty".