1203120021131 has 12 divisors (see below), whose sum is σ = 1412387673840. Its totient is φ = 1021784757840.

The previous prime is 1203120021127. The next prime is 1203120021137. The reversal of 1203120021131 is 1311200213021.

It is not a de Polignac number, because 1203120021131 - 2² = 1203120021127 is a prime.

It is a super-2 number, since 2×1203120021131² (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 (1203120021137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112625255 + ... + 112635936.

It is an arithmetic number, because the mean of its divisors is an integer number (117698972820).

Almost surely, 2^{1203120021131} is an apocalyptic number.

1203120021131 is a deficient number, since it is larger than the sum of its proper divisors (209267652709).

1203120021131 is a wasteful number, since it uses less digits than its factorization.

1203120021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225261314 (or 225261307 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1203120021131 its reverse (1311200213021), we get a palindrome (2514320234152).

The spelling of 1203120021131 in words is "one trillion, two hundred three billion, one hundred twenty million, twenty-one thousand, one hundred thirty-one".