131202133000421 has 12 divisors (see below), whose sum is σ = 152768383166700. Its totient is φ = 112351765216320.

The previous prime is 131202133000403. The next prime is 131202133000423. The reversal of 131202133000421 is 124000331202131.

It can be written as a sum of positive squares in 2 ways, for example, as 108328774588321 + 22873358412100 = 10408111^2 + 4782610^2 .

It is not a de Polignac number, because 131202133000421 - 2⁴⁶ = 60833388822757 is a prime.

It is a super-2 number, since 2×131202133000421² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131202133000423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1276209110 + ... + 1276311911.

It is an arithmetic number, because the mean of its divisors is an integer number (12730698597225).

Almost surely, 2^{131202133000421} is an apocalyptic number.

It is an amenable number.

131202133000421 is a deficient number, since it is larger than the sum of its proper divisors (21566250166279).

131202133000421 is a wasteful number, since it uses less digits than its factorization.

131202133000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552522084 (or 2552522077 counting only the distinct ones).

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

Adding to 131202133000421 its reverse (124000331202131), we get a palindrome (255202464202552).

The spelling of 131202133000421 in words is "one hundred thirty-one trillion, two hundred two billion, one hundred thirty-three million, four hundred twenty-one", and thus it is an aban number.