1621124053230 has 64 divisors (see below), whose sum is σ = 4244781252096. Its totient is φ = 392964240000.

The previous prime is 1621124053189. The next prime is 1621124053279. The reversal of 1621124053230 is 323504211261.

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 31 ways as a sum of consecutive naturals, for example, 3529440 + ... + 3962220.

It is an arithmetic number, because the mean of its divisors is an integer number (66324707064).

Almost surely, 2^{1621124053230} is an apocalyptic number.

1621124053230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1621124053230 is an abundant number, since it is smaller than the sum of its proper divisors (2623657198866).

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

1621124053230 is a wasteful number, since it uses less digits than its factorization.

1621124053230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444153.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1621124053230 its reverse (323504211261), we get a palindrome (1944628264491).

The spelling of 1621124053230 in words is "one trillion, six hundred twenty-one billion, one hundred twenty-four million, fifty-three thousand, two hundred thirty".