1121320021131 has 80 divisors (see below), whose sum is σ = 1854742494528. Its totient is φ = 671514624000.

The previous prime is 1121320021103. The next prime is 1121320021147. The reversal of 1121320021131 is 1311200231211.

1121320021131 is a `hidden beast` number, since 11 + 213 + 200 + 211 + 31 = 666.

It is not a de Polignac number, because 1121320021131 - 2¹⁵ = 1121319988363 is a prime.

It is a super-2 number, since 2×1121320021131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121320021331) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14561931 + ... + 14638731.

Almost surely, 2^{1121320021131} is an apocalyptic number.

1121320021131 is a deficient number, since it is larger than the sum of its proper divisors (733422473397).

1121320021131 is a wasteful number, since it uses less digits than its factorization.

1121320021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77314 (or 77305 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1121320021131 its reverse (1311200231211), we get a palindrome (2432520252342).

The spelling of 1121320021131 in words is "one trillion, one hundred twenty-one billion, three hundred twenty million, twenty-one thousand, one hundred thirty-one".