133021200100031 has 16 divisors (see below), whose sum is σ = 133636544979840. Its totient is φ = 132407372774880.

The previous prime is 133021200099979. The next prime is 133021200100039. The reversal of 133021200100031 is 130001002120331.

It is a cyclic number.

It is not a de Polignac number, because 133021200100031 - 2²² = 133021195905727 is a prime.

It is a super-2 number, since 2×133021200100031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133021200099982 and 133021200100009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133021200100039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817951916 + ... + 818114526.

It is an arithmetic number, because the mean of its divisors is an integer number (8352284061240).

Almost surely, 2^{133021200100031} is an apocalyptic number.

133021200100031 is a deficient number, since it is larger than the sum of its proper divisors (615344879809).

133021200100031 is a wasteful number, since it uses less digits than its factorization.

133021200100031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167254.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 133021200100031 its reverse (130001002120331), we get a palindrome (263022202220362).

The spelling of 133021200100031 in words is "one hundred thirty-three trillion, twenty-one billion, two hundred million, one hundred thousand, thirty-one".