1231464101 has 4 divisors (see below), whose sum is σ = 1407387552. Its totient is φ = 1055540652.

The previous prime is 1231464079. The next prime is 1231464127. The reversal of 1231464101 is 1014641321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1014641321 = 7547 ⋅134443.

It is a cyclic number.

It is not a de Polignac number, because 1231464101 - 2²⁶ = 1164355237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231464131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87961715 + ... + 87961728.

It is an arithmetic number, because the mean of its divisors is an integer number (351846888).

Almost surely, 2^1231464101 is an apocalyptic number.

It is an amenable number.

1231464101 is a deficient number, since it is larger than the sum of its proper divisors (175923451).

1231464101 is an equidigital number, since it uses as much as digits as its factorization.

1231464101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175923450.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1231464101 is about 35092.2227993611. Note that the first 3 decimals coincide. The cubic root of 1231464101 is about 1071.8662225972.

The spelling of 1231464101 in words is "one billion, two hundred thirty-one million, four hundred sixty-four thousand, one hundred one".