131211210000420 has 192 divisors, whose sum is σ = 445343276206080. Its totient is φ = 31807322352000.

The previous prime is 131211210000419. The next prime is 131211210000467. The reversal of 131211210000420 is 24000012112131.

131211210000420 is a `hidden beast` number, since 1 + 3 + 121 + 121 + 0 + 0 + 0 + 0 + 420 = 666.

It is a super-3 number, since 3×131211210000420³ (a number of 43 digits) contains 333 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 = 131211210000393 and 131211210000402.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 132223095 + ... + 133211745.

It is an arithmetic number, because the mean of its divisors is an integer number (2319496230240).

Almost surely, 2^{131211210000420} is an apocalyptic number.

131211210000420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131211210000420 is an abundant number, since it is smaller than the sum of its proper divisors (314132066205660).

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

131211210000420 is a wasteful number, since it uses less digits than its factorization.

131211210000420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011023 (or 1011015 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 131211210000420 its reverse (24000012112131), we get a palindrome (155211222112551).

The spelling of 131211210000420 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred ten million, four hundred twenty", and thus it is an aban number.