1151150215420 has 24 divisors (see below), whose sum is σ = 2417509766448. Its totient is φ = 460442121600.

The previous prime is 1151150215403. The next prime is 1151150215451. The reversal of 1151150215420 is 245120511511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591201 + ... + 1628440.

It is an arithmetic number, because the mean of its divisors is an integer number (100729573602).

Almost surely, 2^{1151150215420} is an apocalyptic number.

1151150215420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151150215420 is an abundant number, since it is smaller than the sum of its proper divisors (1266359551028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151150215420 is a wasteful number, since it uses less digits than its factorization.

1151150215420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245581 (or 2245579 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 28.

Adding to 1151150215420 its reverse (245120511511), we get a palindrome (1396270726931).

The spelling of 1151150215420 in words is "one trillion, one hundred fifty-one billion, one hundred fifty million, two hundred fifteen thousand, four hundred twenty".