2215912713031 has 4 divisors (see below), whose sum is σ = 2227514350464. Its totient is φ = 2204311075600.

The previous prime is 2215912712969. The next prime is 2215912713041. The reversal of 2215912713031 is 1303172195122.

2215912713031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2215912713031 is a prime.

It is a super-2 number, since 2×2215912713031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215912713041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5800818430 + ... + 5800818811.

It is an arithmetic number, because the mean of its divisors is an integer number (556878587616).

Almost surely, 2^{2215912713031} is an apocalyptic number.

2215912713031 is a deficient number, since it is larger than the sum of its proper divisors (11601637433).

2215912713031 is a wasteful number, since it uses less digits than its factorization.

2215912713031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11601637432.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 2215912713031 in words is "two trillion, two hundred fifteen billion, nine hundred twelve million, seven hundred thirteen thousand, thirty-one".