1231023301001 has 64 divisors (see below), whose sum is σ = 1451072750400. Its totient is φ = 1033905930240.

The previous prime is 1231023300979. The next prime is 1231023301097. The reversal of 1231023301001 is 1001033201321.

It can be written as a sum of positive squares in 32 ways, for example, as 1116617003401 + 114406297600 = 1056701^2 + 338240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231023301001 - 2²² = 1231019106697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1231023306001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 751998755 + ... + 752000391.

It is an arithmetic number, because the mean of its divisors is an integer number (22673011725).

Almost surely, 2^{1231023301001} is an apocalyptic number.

It is an amenable number.

1231023301001 is a deficient number, since it is larger than the sum of its proper divisors (220049449399).

1231023301001 is a wasteful number, since it uses less digits than its factorization.

1231023301001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1231023301001 its reverse (1001033201321), we get a palindrome (2232056502322).

The spelling of 1231023301001 in words is "one trillion, two hundred thirty-one billion, twenty-three million, three hundred one thousand, one".