1232210121131 has 4 divisors (see below), whose sum is σ = 1344229223064. Its totient is φ = 1120191019200.

The previous prime is 1232210121071. The next prime is 1232210121137. The reversal of 1232210121131 is 1311210122321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1232210121131 - 2²² = 1232205926827 is a prime.

It is a super-2 number, since 2×1232210121131² (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 (1232210121137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56009550950 + ... + 56009550971.

It is an arithmetic number, because the mean of its divisors is an integer number (336057305766).

Almost surely, 2^{1232210121131} is an apocalyptic number.

1232210121131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1232210121131 is a deficient number, since it is larger than the sum of its proper divisors (112019101933).

1232210121131 is a wasteful number, since it uses less digits than its factorization.

1232210121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112019101932.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1232210121131 its reverse (1311210122321), we get a palindrome (2543420243452).

The spelling of 1232210121131 in words is "one trillion, two hundred thirty-two billion, two hundred ten million, one hundred twenty-one thousand, one hundred thirty-one".