1242545451130 has 128 divisors (see below), whose sum is σ = 2446936128000. Its totient is φ = 452381884416.

The previous prime is 1242545451101. The next prime is 1242545451139. The reversal of 1242545451130 is 311545452421.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 1242545451130.

It is not an unprimeable number, because it can be changed into a prime (1242545451139) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 888166171 + ... + 888167569.

It is an arithmetic number, because the mean of its divisors is an integer number (19116688500).

Almost surely, 2^{1242545451130} is an apocalyptic number.

1242545451130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242545451130 is a deficient number, since it is larger than the sum of its proper divisors (1204390676870).

1242545451130 is a wasteful number, since it uses less digits than its factorization.

1242545451130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216.

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 1242545451130 in words is "one trillion, two hundred forty-two billion, five hundred forty-five million, four hundred fifty-one thousand, one hundred thirty".