2123120131 has 8 divisors (see below), whose sum is σ = 2395998000. Its totient is φ = 1863553440.

The previous prime is 2123120119. The next prime is 2123120137. The reversal of 2123120131 is 1310213212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123120131 - 2⁹ = 2123119619 is a prime.

It is a super-2 number, since 2×2123120131² = 9015278181314914322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123120137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3327456 + ... + 3328093.

It is an arithmetic number, because the mean of its divisors is an integer number (299499750).

Almost surely, 2^2123120131 is an apocalyptic number.

2123120131 is a deficient number, since it is larger than the sum of its proper divisors (272877869).

2123120131 is a wasteful number, since it uses less digits than its factorization.

2123120131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6655589.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2123120131 is about 46077.3277328449. The cubic root of 2123120131 is about 1285.2615719084.

Adding to 2123120131 its reverse (1310213212), we get a palindrome (3433333343).

The spelling of 2123120131 in words is "two billion, one hundred twenty-three million, one hundred twenty thousand, one hundred thirty-one".