2310121100021 has 32 divisors (see below), whose sum is σ = 2758895935488. Its totient is φ = 1891285925760.

The previous prime is 2310121100009. The next prime is 2310121100029. The reversal of 2310121100021 is 1200011210132.

It is not a de Polignac number, because 2310121100021 - 2¹⁴ = 2310121083637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2310121099969 and 2310121100005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2310121100029) 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, 503182436 + ... + 503187026.

It is an arithmetic number, because the mean of its divisors is an integer number (86215497984).

Almost surely, 2^{2310121100021} is an apocalyptic number.

It is an amenable number.

2310121100021 is a deficient number, since it is larger than the sum of its proper divisors (448774835467).

2310121100021 is a wasteful number, since it uses less digits than its factorization.

2310121100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8441.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2310121100021 its reverse (1200011210132), we get a palindrome (3510132310153).

It can be divided in two parts, 2310121 and 100021, that added together give a palindrome (2410142).

The spelling of 2310121100021 in words is "two trillion, three hundred ten billion, one hundred twenty-one million, one hundred thousand, twenty-one".