1012501106501 has 4 divisors (see below), whose sum is σ = 1012505302092. Its totient is φ = 1012496910912.

The previous prime is 1012501106447. The next prime is 1012501106509. The reversal of 1012501106501 is 1056011052101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 873151949476 + 139349157025 = 934426^2 + 373295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012501106501 is a prime.

It is a super-3 number, since 3×1012501106501³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012501106509) 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, 1712180 + ... + 2226333.

It is an arithmetic number, because the mean of its divisors is an integer number (253126325523).

Almost surely, 2^{1012501106501} is an apocalyptic number.

It is an amenable number.

1012501106501 is a deficient number, since it is larger than the sum of its proper divisors (4195591).

1012501106501 is an equidigital number, since it uses as much as digits as its factorization.

1012501106501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195590.

The product of its (nonzero) digits is 300, while the sum is 23.

Adding to 1012501106501 its reverse (1056011052101), we get a palindrome (2068512158602).

The spelling of 1012501106501 in words is "one trillion, twelve billion, five hundred one million, one hundred six thousand, five hundred one".