2121031011302 has 16 divisors (see below), whose sum is σ = 3636101663520. Its totient is φ = 909001165248.

The previous prime is 2121031011301. The next prime is 2121031011371. The reversal of 2121031011302 is 2031101301212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121031011301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120224 + ... + 2063132.

It is an arithmetic number, because the mean of its divisors is an integer number (227256353970).

Almost surely, 2^{2121031011302} is an apocalyptic number.

2121031011302 is a deficient number, since it is larger than the sum of its proper divisors (1515070652218).

2121031011302 is a wasteful number, since it uses less digits than its factorization.

2121031011302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020895.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2121031011302 its reverse (2031101301212), we get a palindrome (4152132312514).

The spelling of 2121031011302 in words is "two trillion, one hundred twenty-one billion, thirty-one million, eleven thousand, three hundred two".