202121132131030 has 64 divisors (see below), whose sum is σ = 420473960229888. Its totient is φ = 68520201321600.

The previous prime is 202121132131021. The next prime is 202121132131031. The reversal of 202121132131030 is 30131231121202.

It is a junction number, because it is equal to n+sod(n) for n = 202121132130992 and 202121132131010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202121132131031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13985592 + ... + 24491611.

It is an arithmetic number, because the mean of its divisors is an integer number (6569905628592).

Almost surely, 2^{202121132131030} is an apocalyptic number.

202121132131030 is an abundant number, since it is smaller than the sum of its proper divisors (218352828098858).

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

202121132131030 is a wasteful number, since it uses less digits than its factorization.

202121132131030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38478061.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 202121132131030 its reverse (30131231121202), we get a palindrome (232252363252232).

The spelling of 202121132131030 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred thirty-two million, one hundred thirty-one thousand, thirty".