2121411502623 has 32 divisors (see below), whose sum is σ = 3422872525824. Its totient is φ = 1140896881152.

The previous prime is 2121411502597. The next prime is 2121411502631. The reversal of 2121411502623 is 3262051141212.

It is not a de Polignac number, because 2121411502623 - 2⁸ = 2121411502367 is a prime.

It is a super-2 number, since 2×2121411502623² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121411501623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22059961 + ... + 22155917.

It is an arithmetic number, because the mean of its divisors is an integer number (106964766432).

Almost surely, 2^{2121411502623} is an apocalyptic number.

2121411502623 is a deficient number, since it is larger than the sum of its proper divisors (1301461023201).

2121411502623 is a wasteful number, since it uses less digits than its factorization.

2121411502623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157911.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 2121411502623 its reverse (3262051141212), we get a palindrome (5383462643835).

The spelling of 2121411502623 in words is "two trillion, one hundred twenty-one billion, four hundred eleven million, five hundred two thousand, six hundred twenty-three".