1023377943 has 16 divisors (see below), whose sum is σ = 1641509120. Its totient is φ = 554008896.

The previous prime is 1023377911. The next prime is 1023377959. The reversal of 1023377943 is 3497733201.

It is not a de Polignac number, because 1023377943 - 2⁵ = 1023377911 is a prime.

It is a super-2 number, since 2×1023377943² = 2094604828437822498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023377903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1282030 + ... + 1282827.

It is an arithmetic number, because the mean of its divisors is an integer number (102594320).

Almost surely, 2^1023377943 is an apocalyptic number.

1023377943 is a deficient number, since it is larger than the sum of its proper divisors (618131177).

1023377943 is a wasteful number, since it uses less digits than its factorization.

1023377943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564886.

The product of its (nonzero) digits is 95256, while the sum is 39.

The square root of 1023377943 is about 31990.2788828106. The cubic root of 1023377943 is about 1007.7326989096.

The spelling of 1023377943 in words is "one billion, twenty-three million, three hundred seventy-seven thousand, nine hundred forty-three".