1002152131421 has 16 divisors (see below), whose sum is σ = 1185088060800. Its totient is φ = 829172920128.

The previous prime is 1002152131369. The next prime is 1002152131439. The reversal of 1002152131421 is 1241312512001.

It is not a de Polignac number, because 1002152131421 - 2¹⁴ = 1002152115037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002152131471) 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, 293135 + ... + 1445763.

It is an arithmetic number, because the mean of its divisors is an integer number (74068003800).

Almost surely, 2^{1002152131421} is an apocalyptic number.

It is an amenable number.

1002152131421 is a deficient number, since it is larger than the sum of its proper divisors (182935929379).

1002152131421 is a wasteful number, since it uses less digits than its factorization.

1002152131421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156948.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 1002152131421 its reverse (1241312512001), we get a palindrome (2243464643422).

The spelling of 1002152131421 in words is "one trillion, two billion, one hundred fifty-two million, one hundred thirty-one thousand, four hundred twenty-one".