1427121423 has 120 divisors (see below), whose sum is σ = 2829535632. Its totient is φ = 708051456.

The previous prime is 1427121419. The next prime is 1427121473. The reversal of 1427121423 is 3241217241.

1427121423 is a `hidden beast` number, since 1 + 427 + 1 + 214 + 23 = 666.

It is not a de Polignac number, because 1427121423 - 2² = 1427121419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427121473) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 876336 + ... + 877962.

Almost surely, 2^1427121423 is an apocalyptic number.

1427121423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1427121423 is a deficient number, since it is larger than the sum of its proper divisors (1402414209).

1427121423 is a wasteful number, since it uses less digits than its factorization.

1427121423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683 (or 1667 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 1427121423 is about 37777.2606603496. The cubic root of 1427121423 is about 1125.8667027852.

Adding to 1427121423 its reverse (3241217241), we get a palindrome (4668338664).

The spelling of 1427121423 in words is "one billion, four hundred twenty-seven million, one hundred twenty-one thousand, four hundred twenty-three".