1231421050045 has 8 divisors (see below), whose sum is σ = 1484214976224. Its totient is φ = 980797029264.

The previous prime is 1231421050007. The next prime is 1231421050061. The reversal of 1231421050045 is 5400501241321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231421050045 - 2⁹ = 1231421049533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231421049995 and 1231421050022.

It is a congruent number.

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, 542475099 + ... + 542477368.

It is an arithmetic number, because the mean of its divisors is an integer number (185526872028).

Almost surely, 2^{1231421050045} is an apocalyptic number.

It is an amenable number.

1231421050045 is a deficient number, since it is larger than the sum of its proper divisors (252793926179).

1231421050045 is a wasteful number, since it uses less digits than its factorization.

1231421050045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084952699.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 1231421050045 its reverse (5400501241321), we get a palindrome (6631922291366).

The spelling of 1231421050045 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-one million, fifty thousand, forty-five".