2045323151220 has 48 divisors (see below), whose sum is σ = 5779445253120. Its totient is φ = 540415656576.

The previous prime is 2045323151203. The next prime is 2045323151317. The reversal of 2045323151220 is 221513235402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156363732 + ... + 156376811.

It is an arithmetic number, because the mean of its divisors is an integer number (120405109440).

Almost surely, 2^{2045323151220} is an apocalyptic number.

2045323151220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045323151220 is an abundant number, since it is smaller than the sum of its proper divisors (3734122101900).

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

2045323151220 is a wasteful number, since it uses less digits than its factorization.

2045323151220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312740664 (or 312740662 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 2045323151220 its reverse (221513235402), we get a palindrome (2266836386622).

The spelling of 2045323151220 in words is "two trillion, forty-five billion, three hundred twenty-three million, one hundred fifty-one thousand, two hundred twenty".