1031202111131 has 4 divisors (see below), whose sum is σ = 1076036985552. Its totient is φ = 986367236712.

The previous prime is 1031202111109. The next prime is 1031202111157. The reversal of 1031202111131 is 1311112021301.

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 1031202111131 - 2⁶ = 1031202111067 is a prime.

It is a super-2 number, since 2×1031202111131² (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 (1031202111431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22417437176 + ... + 22417437221.

It is an arithmetic number, because the mean of its divisors is an integer number (269009246388).

Almost surely, 2^{1031202111131} is an apocalyptic number.

1031202111131 is a deficient number, since it is larger than the sum of its proper divisors (44834874421).

1031202111131 is an equidigital number, since it uses as much as digits as its factorization.

1031202111131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44834874420.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1031202111131 its reverse (1311112021301), we get a palindrome (2342314132432).

The spelling of 1031202111131 in words is "one trillion, thirty-one billion, two hundred two million, one hundred eleven thousand, one hundred thirty-one".