215042023511 has 8 divisors (see below), whose sum is σ = 247389878784. Its totient is φ = 183101059800.

The previous prime is 215042023507. The next prime is 215042023607. The reversal of 215042023511 is 115320240512.

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

It is not a de Polignac number, because 215042023511 - 2² = 215042023507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215042023501) 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, 101721755 + ... + 101723868.

It is an arithmetic number, because the mean of its divisors is an integer number (30923734848).

Almost surely, 2^215042023511 is an apocalyptic number.

215042023511 is a deficient number, since it is larger than the sum of its proper divisors (32347855273).

215042023511 is a wasteful number, since it uses less digits than its factorization.

215042023511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203445781.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 215042023511 in words is "two hundred fifteen billion, forty-two million, twenty-three thousand, five hundred eleven".