1302130101021 has 16 divisors (see below), whose sum is σ = 1784035342848. Its totient is φ = 844180488000.

The previous prime is 1302130101007. The next prime is 1302130101023. The reversal of 1302130101021 is 1201010312031.

It is a happy number.

It is not a de Polignac number, because 1302130101021 - 2¹⁹ = 1302129576733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302130101023) 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, 2874445 + ... + 3296466.

It is an arithmetic number, because the mean of its divisors is an integer number (111502208928).

Almost surely, 2^{1302130101021} is an apocalyptic number.

It is an amenable number.

1302130101021 is a deficient number, since it is larger than the sum of its proper divisors (481905241827).

1302130101021 is a wasteful number, since it uses less digits than its factorization.

1302130101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172852.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1302130101021 its reverse (1201010312031), we get a palindrome (2503140413052).

The spelling of 1302130101021 in words is "one trillion, three hundred two billion, one hundred thirty million, one hundred one thousand, twenty-one".