123012031001 has 32 divisors (see below), whose sum is σ = 129887100288. Its totient is φ = 116384486400.

The previous prime is 123012030983. The next prime is 123012031003. The reversal of 123012031001 is 100130210321.

It is a cyclic number.

It is not a de Polignac number, because 123012031001 - 2¹⁰ = 123012029977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123012031003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125907425 + ... + 125908401.

It is an arithmetic number, because the mean of its divisors is an integer number (4058971884).

Almost surely, 2^123012031001 is an apocalyptic number.

It is an amenable number.

123012031001 is a deficient number, since it is larger than the sum of its proper divisors (6875069287).

123012031001 is a wasteful number, since it uses less digits than its factorization.

123012031001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 123012031001 its reverse (100130210321), we get a palindrome (223142241322).

The spelling of 123012031001 in words is "one hundred twenty-three billion, twelve million, thirty-one thousand, one".