1131211333203 has 32 divisors (see below), whose sum is σ = 1730107545600. Its totient is φ = 644026014720.

The previous prime is 1131211333183. The next prime is 1131211333223. The reversal of 1131211333203 is 3023331121311.

It is an interprime number because it is at equal distance from previous prime (1131211333183) and next prime (1131211333223).

It is not a de Polignac number, because 1131211333203 - 2¹⁷ = 1131211202131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131211333223) 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, 8014683 + ... + 8154603.

It is an arithmetic number, because the mean of its divisors is an integer number (54065860800).

Almost surely, 2^{1131211333203} is an apocalyptic number.

1131211333203 is a deficient number, since it is larger than the sum of its proper divisors (598896212397).

1131211333203 is a wasteful number, since it uses less digits than its factorization.

1131211333203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141347.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1131211333203 its reverse (3023331121311), we get a palindrome (4154542454514).

The spelling of 1131211333203 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, three hundred thirty-three thousand, two hundred three".