123132021331 has 12 divisors (see below), whose sum is σ = 136153923696. Its totient is φ = 111267894320.

The previous prime is 123132021329. The next prime is 123132021361. The reversal of 123132021331 is 133120231321.

It is not a de Polignac number, because 123132021331 - 2¹ = 123132021329 is a prime.

It is a super-2 number, since 2×123132021331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123132021361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3026560 + ... + 3066973.

It is an arithmetic number, because the mean of its divisors is an integer number (11346160308).

Almost surely, 2^123132021331 is an apocalyptic number.

123132021331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123132021331 is a deficient number, since it is larger than the sum of its proper divisors (13021902365).

123132021331 is a wasteful number, since it uses less digits than its factorization.

123132021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6093722 (or 6093711 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123132021331 its reverse (133120231321), we get a palindrome (256252252652).

The spelling of 123132021331 in words is "one hundred twenty-three billion, one hundred thirty-two million, twenty-one thousand, three hundred thirty-one".