1233140131 has 4 divisors (see below), whose sum is σ = 1234769872. Its totient is φ = 1231510392.

The previous prime is 1233140099. The next prime is 1233140137. The reversal of 1233140131 is 1310413321.

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

It is a cyclic number.

It is not a de Polignac number, because 1233140131 - 2⁵ = 1233140099 is a prime.

It is a super-2 number, since 2×1233140131² = 3041269165365394322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1233140099 and 1233140108.

It is not an unprimeable number, because it can be changed into a prime (1233140137) 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, 813735 + ... + 815248.

It is an arithmetic number, because the mean of its divisors is an integer number (308692468).

Almost surely, 2^1233140131 is an apocalyptic number.

1233140131 is a deficient number, since it is larger than the sum of its proper divisors (1629741).

1233140131 is an equidigital number, since it uses as much as digits as its factorization.

1233140131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629740.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1233140131 is about 35116.0950420174. The cubic root of 1233140131 is about 1072.3522742688.

Adding to 1233140131 its reverse (1310413321), we get a palindrome (2543553452).

The spelling of 1233140131 in words is "one billion, two hundred thirty-three million, one hundred forty thousand, one hundred thirty-one".