2151305243400 has 96 divisors (see below), whose sum is σ = 6669392104800. Its totient is φ = 573651648000.

The previous prime is 2151305243327. The next prime is 2151305243401. The reversal of 2151305243400 is 43425031512.

It is a super-2 number, since 2×2151305243400² (a number of 25 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2151305243401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13028556 + ... + 13192644.

It is an arithmetic number, because the mean of its divisors is an integer number (69472834425).

Almost surely, 2^{2151305243400} is an apocalyptic number.

2151305243400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151305243400 is an abundant number, since it is smaller than the sum of its proper divisors (4518086861400).

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

2151305243400 is a wasteful number, since it uses less digits than its factorization.

2151305243400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185959 (or 185950 counting only the distinct ones).

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

The spelling of 2151305243400 in words is "two trillion, one hundred fifty-one billion, three hundred five million, two hundred forty-three thousand, four hundred".