210121023030231 has 64 divisors (see below), whose sum is σ = 291311148957696. Its totient is φ = 134627424624000.

The previous prime is 210121023030221. The next prime is 210121023030251. The reversal of 210121023030231 is 132030320121012.

It is not a de Polignac number, because 210121023030231 - 2²⁷ = 210120888812503 is a prime.

It is a super-2 number, since 2×210121023030231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210121023030198 and 210121023030207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210121023030221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4465790656 + ... + 4465837706.

It is an arithmetic number, because the mean of its divisors is an integer number (4551736702464).

Almost surely, 2^{210121023030231} is an apocalyptic number.

210121023030231 is a deficient number, since it is larger than the sum of its proper divisors (81190125927465).

210121023030231 is a wasteful number, since it uses less digits than its factorization.

210121023030231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48652.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 210121023030231 its reverse (132030320121012), we get a palindrome (342151343151243).

The spelling of 210121023030231 in words is "two hundred ten trillion, one hundred twenty-one billion, twenty-three million, thirty thousand, two hundred thirty-one".