2011151455421 has 8 divisors (see below), whose sum is σ = 2098721577600. Its totient is φ = 1923592062832.

The previous prime is 2011151455409. The next prime is 2011151455471. The reversal of 2011151455421 is 1245541511102.

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 2011151455421 - 2²² = 2011147261117 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 (2011151455471) 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, 2298185 + ... + 3050238.

It is an arithmetic number, because the mean of its divisors is an integer number (262340197200).

Almost surely, 2^{2011151455421} is an apocalyptic number.

It is an amenable number.

2011151455421 is a deficient number, since it is larger than the sum of its proper divisors (87570122179).

2011151455421 is a wasteful number, since it uses less digits than its factorization.

2011151455421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364795.

The product of its (nonzero) digits is 8000, while the sum is 32.

Adding to 2011151455421 its reverse (1245541511102), we get a palindrome (3256692966523).

The spelling of 2011151455421 in words is "two trillion, eleven billion, one hundred fifty-one million, four hundred fifty-five thousand, four hundred twenty-one".