211213023 has 8 divisors (see below), whose sum is σ = 321848448. Its totient is φ = 120693144.

The previous prime is 211213021. The next prime is 211213031. The reversal of 211213023 is 320312112.

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

It is not a de Polignac number, because 211213023 - 2¹ = 211213021 is a prime.

It is a super-2 number, since 2×211213023² = 89221882169597058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211212993 and 211213011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211213021) 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, 5028861 + ... + 5028902.

It is an arithmetic number, because the mean of its divisors is an integer number (40231056).

Almost surely, 2^211213023 is an apocalyptic number.

211213023 is a deficient number, since it is larger than the sum of its proper divisors (110635425).

211213023 is a wasteful number, since it uses less digits than its factorization.

211213023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057773.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 211213023 is about 14533.1697506084. The cubic root of 211213023 is about 595.5344612802.

Adding to 211213023 its reverse (320312112), we get a palindrome (531525135).

The spelling of 211213023 in words is "two hundred eleven million, two hundred thirteen thousand, twenty-three".