123132002011 has 4 divisors (see below), whose sum is σ = 123175468312. Its totient is φ = 123088535712.

The previous prime is 123132002003. The next prime is 123132002041. The reversal of 123132002011 is 110200231321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110200231321 = 49843 ⋅2210947.

It is a cyclic number.

It is not a de Polignac number, because 123132002011 - 2³ = 123132002003 is a prime.

It is a super-2 number, since 2×123132002011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123132002041) 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, 21728901 + ... + 21734566.

It is an arithmetic number, because the mean of its divisors is an integer number (30793867078).

Almost surely, 2^123132002011 is an apocalyptic number.

123132002011 is a deficient number, since it is larger than the sum of its proper divisors (43466301).

123132002011 is an equidigital number, since it uses as much as digits as its factorization.

123132002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43466300.

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

Adding to 123132002011 its reverse (110200231321), we get a palindrome (233332233332).

The spelling of 123132002011 in words is "one hundred twenty-three billion, one hundred thirty-two million, two thousand, eleven".