1002123132501 has 16 divisors (see below), whose sum is σ = 1359061704000. Its totient is φ = 656637502848.

The previous prime is 1002123132467. The next prime is 1002123132559. The reversal of 1002123132501 is 1052313212001.

It is not a de Polignac number, because 1002123132501 - 2²³ = 1002114743893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002123132301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444955 + ... + 1483991.

It is an arithmetic number, because the mean of its divisors is an integer number (84941356500).

Almost surely, 2^{1002123132501} is an apocalyptic number.

It is an amenable number.

1002123132501 is a deficient number, since it is larger than the sum of its proper divisors (356938571499).

1002123132501 is a wasteful number, since it uses less digits than its factorization.

1002123132501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044548.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 1002123132501 its reverse (1052313212001), we get a palindrome (2054436344502).

The spelling of 1002123132501 in words is "one trillion, two billion, one hundred twenty-three million, one hundred thirty-two thousand, five hundred one".