1357821023 has 8 divisors (see below), whose sum is σ = 1493381568. Its totient is φ = 1226705184.

The previous prime is 1357821013. The next prime is 1357821043. The reversal of 1357821023 is 3201287531.

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 1357821023 - 2⁴ = 1357821007 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 (1357821013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1110536 + ... + 1111757.

It is an arithmetic number, because the mean of its divisors is an integer number (186672696).

Almost surely, 2^1357821023 is an apocalyptic number.

1357821023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1357821023 is a deficient number, since it is larger than the sum of its proper divisors (135560545).

1357821023 is a wasteful number, since it uses less digits than its factorization.

1357821023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222353.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1357821023 is about 36848.6230814667. The cubic root of 1357821023 is about 1107.3396297708.

The spelling of 1357821023 in words is "one billion, three hundred fifty-seven million, eight hundred twenty-one thousand, twenty-three".