1233420143520 has 48 divisors (see below), whose sum is σ = 3885273453600. Its totient is φ = 328912038144.

The previous prime is 1233420143441. The next prime is 1233420143537. The reversal of 1233420143520 is 253410243321.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1284812170 + ... + 1284813129.

It is an arithmetic number, because the mean of its divisors is an integer number (80943196950).

Almost surely, 2^{1233420143520} is an apocalyptic number.

1233420143520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233420143520 is an abundant number, since it is smaller than the sum of its proper divisors (2651853310080).

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

1233420143520 is a wasteful number, since it uses less digits than its factorization.

1233420143520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569625317 (or 2569625309 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 1233420143520 its reverse (253410243321), we get a palindrome (1486830386841).

The spelling of 1233420143520 in words is "one trillion, two hundred thirty-three billion, four hundred twenty million, one hundred forty-three thousand, five hundred twenty".