131021212003430 has 16 divisors (see below), whose sum is σ = 269529350407200. Its totient is φ = 44921558401152.

The previous prime is 131021212003427. The next prime is 131021212003439. The reversal of 131021212003430 is 34300212120131.

It is a junction number, because it is equal to n+sod(n) for n = 131021212003396 and 131021212003405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021212003439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935865799955 + ... + 935865800094.

It is an arithmetic number, because the mean of its divisors is an integer number (16845584400450).

Almost surely, 2^{131021212003430} is an apocalyptic number.

131021212003430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131021212003430 is an abundant number, since it is smaller than the sum of its proper divisors (138508138403770).

131021212003430 is a wasteful number, since it uses less digits than its factorization.

131021212003430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871731600063.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 131021212003430 its reverse (34300212120131), we get a palindrome (165321424123561).

The spelling of 131021212003430 in words is "one hundred thirty-one trillion, twenty-one billion, two hundred twelve million, three thousand, four hundred thirty".