1020100211131 has 4 divisors (see below), whose sum is σ = 1029633858072. Its totient is φ = 1010566564192.

The previous prime is 1020100211099. The next prime is 1020100211153. The reversal of 1020100211131 is 1311120010201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020100211131 - 2⁵ = 1020100211099 is a prime.

It is a super-2 number, since 2×1020100211131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020100211531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4766823310 + ... + 4766823523.

It is an arithmetic number, because the mean of its divisors is an integer number (257408464518).

Almost surely, 2^{1020100211131} is an apocalyptic number.

1020100211131 is a deficient number, since it is larger than the sum of its proper divisors (9533646941).

1020100211131 is an equidigital number, since it uses as much as digits as its factorization.

1020100211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9533646940.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1020100211131 its reverse (1311120010201), we get a palindrome (2331220221332).

The spelling of 1020100211131 in words is "one trillion, twenty billion, one hundred million, two hundred eleven thousand, one hundred thirty-one".