2121121231003 has 8 divisors (see below), whose sum is σ = 2170577141568. Its totient is φ = 2071671116424.

The previous prime is 2121121230973. The next prime is 2121121231039. The reversal of 2121121231003 is 3001321211212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2121121231003 - 2⁵ = 2121121230971 is a prime.

It is a super-2 number, since 2×2121121231003² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121121238003) 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, 704125 + ... + 2176702.

It is an arithmetic number, because the mean of its divisors is an integer number (271322142696).

Almost surely, 2^{2121121231003} is an apocalyptic number.

2121121231003 is a deficient number, since it is larger than the sum of its proper divisors (49455910565).

2121121231003 is a wasteful number, since it uses less digits than its factorization.

2121121231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897993.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2121121231003 its reverse (3001321211212), we get a palindrome (5122442442215).

The spelling of 2121121231003 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred thirty-one thousand, three".