40154011023 has 16 divisors (see below), whose sum is σ = 61201046016. Its totient is φ = 22939906080.

The previous prime is 40154011013. The next prime is 40154011061. The reversal of 40154011023 is 32011045104.

It is not a de Polignac number, because 40154011023 - 2⁵ = 40154010991 is a prime.

It is a super-2 number, since 2×40154011023² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40154011013) 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, 123411 + ... + 309092.

It is an arithmetic number, because the mean of its divisors is an integer number (3825065376).

Almost surely, 2^40154011023 is an apocalyptic number.

40154011023 is a deficient number, since it is larger than the sum of its proper divisors (21047034993).

40154011023 is a wasteful number, since it uses less digits than its factorization.

40154011023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436934.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 40154011023 its reverse (32011045104), we get a palindrome (72165056127).

The spelling of 40154011023 in words is "forty billion, one hundred fifty-four million, eleven thousand, twenty-three".