211002012021031 has 8 divisors (see below), whose sum is σ = 263067443558784. Its totient is φ = 164417152224120.

The previous prime is 211002012021023. The next prime is 211002012021067. The reversal of 211002012021031 is 130120210200112.

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

It is a cyclic number.

It is not a de Polignac number, because 211002012021031 - 2³ = 211002012021023 is a prime.

It is a super-2 number, since 2×211002012021031² (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 = 211002012020996 and 211002012021014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211002012021001) 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, 1370142935125 + ... + 1370142935278.

It is an arithmetic number, because the mean of its divisors is an integer number (32883430444848).

Almost surely, 2^{211002012021031} is an apocalyptic number.

211002012021031 is a deficient number, since it is larger than the sum of its proper divisors (52065431537753).

211002012021031 is a wasteful number, since it uses less digits than its factorization.

211002012021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740285870421.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211002012021031 its reverse (130120210200112), we get a palindrome (341122222221143).

The spelling of 211002012021031 in words is "two hundred eleven trillion, two billion, twelve million, twenty-one thousand, thirty-one".