121231203003001 has 32 divisors (see below), whose sum is σ = 151692385510400. Its totient is φ = 94322656673280.

The previous prime is 121231203002993. The next prime is 121231203003083. The reversal of 121231203003001 is 100300302132121.

It is not a de Polignac number, because 121231203003001 - 2³ = 121231203002993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121231203003001.

It is not an unprimeable number, because it can be changed into a prime (121231203003091) 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, 18968005 + ... + 24540733.

It is an arithmetic number, because the mean of its divisors is an integer number (4740387047200).

Almost surely, 2^{121231203003001} is an apocalyptic number.

It is an amenable number.

121231203003001 is a deficient number, since it is larger than the sum of its proper divisors (30461182507399).

121231203003001 is a wasteful number, since it uses less digits than its factorization.

121231203003001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5576729.

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

Adding to 121231203003001 its reverse (100300302132121), we get a palindrome (221531505135122).

The spelling of 121231203003001 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, two hundred three million, three thousand, one".