131023212322330 has 16 divisors (see below), whose sum is σ = 238491689846760. Its totient is φ = 51820416558592.

The previous prime is 131023212322319. The next prime is 131023212322357. The reversal of 131023212322330 is 33223212320131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49904602933761 + 81118609388569 = 7064319^2 + 9006587^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73608545359 + ... + 73608547138.

Almost surely, 2^{131023212322330} is an apocalyptic number.

131023212322330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131023212322330 is a deficient number, since it is larger than the sum of its proper divisors (107468477524430).

131023212322330 is a wasteful number, since it uses less digits than its factorization.

131023212322330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147217092593.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 131023212322330 its reverse (33223212320131), we get a palindrome (164246424642461).

The spelling of 131023212322330 in words is "one hundred thirty-one trillion, twenty-three billion, two hundred twelve million, three hundred twenty-two thousand, three hundred thirty".