12120131021131 has 16 divisors (see below), whose sum is σ = 13891928037120. Its totient is φ = 10358423301600.

The previous prime is 12120131021101. The next prime is 12120131021147. The reversal of 12120131021131 is 13112013102121.

It is a cyclic number.

It is not a de Polignac number, because 12120131021131 - 2⁹ = 12120131020619 is a prime.

It is a super-2 number, since 2×12120131021131² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12120131021099 and 12120131021108.

It is not an unprimeable number, because it can be changed into a prime (12120131021101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110680956 + ... + 110790406.

It is an arithmetic number, because the mean of its divisors is an integer number (868245502320).

Almost surely, 2^{12120131021131} is an apocalyptic number.

12120131021131 is a deficient number, since it is larger than the sum of its proper divisors (1771797015989).

12120131021131 is a wasteful number, since it uses less digits than its factorization.

12120131021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155394.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12120131021131 its reverse (13112013102121), we get a palindrome (25232144123252).

The spelling of 12120131021131 in words is "twelve trillion, one hundred twenty billion, one hundred thirty-one million, twenty-one thousand, one hundred thirty-one".