1210123553430 has 64 divisors (see below), whose sum is σ = 3172682193408. Its totient is φ = 292959701760.

The previous prime is 1210123553423. The next prime is 1210123553453. The reversal of 1210123553430 is 343553210121.

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, 2282127 + ... + 2761946.

It is an arithmetic number, because the mean of its divisors is an integer number (49573159272).

Almost surely, 2^{1210123553430} is an apocalyptic number.

1210123553430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210123553430 is an abundant number, since it is smaller than the sum of its proper divisors (1962558639978).

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

1210123553430 is a wasteful number, since it uses less digits than its factorization.

1210123553430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044821.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 1210123553430 its reverse (343553210121), we get a palindrome (1553676763551).

The spelling of 1210123553430 in words is "one trillion, two hundred ten billion, one hundred twenty-three million, five hundred fifty-three thousand, four hundred thirty".