1131223203102 has 16 divisors (see below), whose sum is σ = 2270794920192. Its totient is φ = 375682982040.

The previous prime is 1131223203073. The next prime is 1131223203109. The reversal of 1131223203102 is 2013023221311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131223203109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347852988 + ... + 347856239.

It is an arithmetic number, because the mean of its divisors is an integer number (141924682512).

Almost surely, 2^{1131223203102} is an apocalyptic number.

1131223203102 is an abundant number, since it is smaller than the sum of its proper divisors (1139571717090).

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

1131223203102 is a wasteful number, since it uses less digits than its factorization.

1131223203102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695709503.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1131223203102 its reverse (2013023221311), we get a palindrome (3144246424413).

The spelling of 1131223203102 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-three million, two hundred three thousand, one hundred two".