211210213323031 has 32 divisors (see below), whose sum is σ = 235884542136320. Its totient is φ = 187865962502400.

The previous prime is 211210213323029. The next prime is 211210213323037. The reversal of 211210213323031 is 130323312012112.

It is not a de Polignac number, because 211210213323031 - 2¹ = 211210213323029 is a prime.

It is a super-2 number, since 2×211210213323031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211210213322987 and 211210213323005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210213323037) 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, 52419571 + ... + 56304811.

It is an arithmetic number, because the mean of its divisors is an integer number (7371391941760).

Almost surely, 2^{211210213323031} is an apocalyptic number.

211210213323031 is a deficient number, since it is larger than the sum of its proper divisors (24674328813289).

211210213323031 is a wasteful number, since it uses less digits than its factorization.

211210213323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3886607.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 211210213323031 its reverse (130323312012112), we get a palindrome (341533525335143).

The spelling of 211210213323031 in words is "two hundred eleven trillion, two hundred ten billion, two hundred thirteen million, three hundred twenty-three thousand, thirty-one".