1172040023 has 32 divisors (see below), whose sum is σ = 1542397440. Its totient is φ = 862824960.

The previous prime is 1172040013. The next prime is 1172040029. The reversal of 1172040023 is 3200402711.

It is not a de Polignac number, because 1172040023 - 2⁸ = 1172039767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1172039977 and 1172040004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172040029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667715 + ... + 669467.

It is an arithmetic number, because the mean of its divisors is an integer number (48199920).

Almost surely, 2^1172040023 is an apocalyptic number.

1172040023 is a deficient number, since it is larger than the sum of its proper divisors (370357417).

1172040023 is a wasteful number, since it uses less digits than its factorization.

1172040023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1172040023 is about 34235.0700744135. The cubic root of 1172040023 is about 1054.3403175848.

Adding to 1172040023 its reverse (3200402711), we get a palindrome (4372442734).

The spelling of 1172040023 in words is "one billion, one hundred seventy-two million, forty thousand, twenty-three".